Buy ADB-BUTINACA (ADMB-BINACA) Cas 2682867-55-4
Buy ADB-BUTINACA (ADMB-BINACA) Cas 2682867-55-4
ADB-BUTINACA (also known as ADMB-BINACA using EMCDDA naming standards[3]) is a synthetic cannabinoid compound which has been sold as a designer drug.[4][5][6][7][8] It is a potent CB1 agonist, with a binding affinity of 0.29nM for CB1 and 0.91nM for CB2, and an EC50 of 6.36 nM for CB1.[9][10][11][12][13][14][15]
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Searching for where to buy ADB-BUTINACA online? ADB-BUTINACA is a potent indazole carboxamide synthetic cannabinoid available at Global Research Lab for controlled laboratory research. We carry ADB-BUTINACA for sale with a batch-specific Certificate of Analysis, verified identity data, discreet packaging, and tracked shipping. Compare with JWH-210, Mescaline.
Researchers around the world rely on Global Research Lab for synthetic cannabinoid research chemicals that meet strict analytical standards. Read scientific information about ADB-BUTINACA to understand the compound’s background and research context.
What Is ADB-BUTINACA?
ADB-BUTINACA is studied for high-potency CB1 receptor binding, forensic toxicology, and comparative structure-activity research. Researchers value this compound as a reference material for analytical calibration, method development, and comparative pharmacology studies. Like all products at Global Research Lab, ADB-BUTINACA is sold strictly for laboratory, analytical, and educational research, not for human or veterinary use.
In research settings, ADB-BUTINACA helps scientists explore mechanisms related to receptor binding, signal transduction, and metabolic pathways. Learn more through scientific information about ADB-BUTINACA. Proper handling, storage, and analytical verification are essential when working with ADB-BUTINACA reference materials.
Why Researchers Buy ADB-BUTINACA Online
Laboratories choose to buy ADB-BUTINACA online from Global Research Lab because of our commitment to verified purity and batch traceability. Every ADB-BUTINACA order includes a Certificate of Analysis. Compare with related compounds such as JWH-210, Mescaline.
Where to Buy ADB-BUTINACA Online From a Verified Supplier
When you buy ADB-BUTINACA online here, you receive a research-grade reference material backed by documentation and support. For background, see scientific information about ADB-BUTINACA.
ADB-BUTINACA Research Applications
ADB-BUTINACA is used for receptor binding assays, forensic toxicology calibration, and analytical method development. Researchers often compare ADB-BUTINACA with JWH-210, Mescaline to study structure-activity relationships.
Chemical Properties and Analytical Profile
The chemical structure of ADB-BUTINACA determines its analytical signature and receptor interaction profile. Reference-grade ADB-BUTINACA is analyzed by HPLC, mass spectrometry, and NMR. See scientific information about ADB-BUTINACA for structural details.
Quality Assurance and Documentation
Each batch is analyzed and linked to a Certificate of Analysis. Store ADB-BUTINACA in a cool, dry, dark environment. Contact us for additional documentation.
Payment, Shipping, and Support
We accept Bitcoin, PayPal, Zelle, Chime, Apple Pay, and other secure methods. Orders are prepared discreetly and shipped with tracking.
Safety and Compliance
ADB-BUTINACA is sold exclusively for research purposes. Buyers must confirm lawful laboratory use. Review the Safety Data Sheet and Certificate of Analysis before beginning any experiment.
How to Order
Ordering ADB-BUTINACA is straightforward. Select the quantity, add to cart, and complete checkout. Once confirmed, your order is prepared discreetly and shipped with tracking.
Research Ethics and Legal Compliance
Researchers must comply with the legal framework governing ADB-BUTINACA in their jurisdiction. Global Research Lab sells all reference materials strictly for lawful scientific research.
Comparative Research
Comparing ADB-BUTINACA with JWH-210, Mescaline helps researchers understand how structural changes affect receptor binding, metabolic stability, and detection characteristics.
Building a Reference Library
Include ADB-BUTINACA and JWH-210, Mescaline in a well-stocked reference library for cross-validation and method development.
International Shipping
We ship worldwide with appropriate customs documentation. Check local regulations before ordering.
Customer Support
Our team assists with product selection, tracking, and documentation requests. See scientific information about ADB-BUTINACA for general compound information.
Verified Supplier Network
Global Research Lab works with qualified manufacturers and analytical labs to maintain consistent quality.
Collaboration and Data Sharing
Using verified reference materials with batch-specific documentation ensures results can be compared and replicated.
Getting Started
Review the Certificate of Analysis and Safety Data Sheet for ADB-BUTINACA. Plan experiments with controls, calibration standards, and safety protocols.
Analytical Methods
ADB-BUTINACA supports HPLC, GC-MS, LC-MS/MS, and NMR workflows for identity and purity verification.
Metabolism and Detection
ADB-BUTINACA is metabolized through phase I and phase II pathways, producing metabolites that may be detected in forensic samples. Reference materials are essential for metabolite identification.
Pharmacology
ADB-BUTINACA interacts with biological receptors, providing insights into structure-activity relationships and drug discovery.
Custom Synthesis and Bulk
Contact us for bulk pricing, custom synthesis, or specialized salt forms for long-term research programs.
Legal Status and Scheduling
ADB-BUTINACA may be scheduled or controlled in various jurisdictions. Buyers must confirm the legal status of ADB-BUTINACA in their region before ordering. Analog laws may also apply to structurally similar compounds.
Storage and Handling Best Practices
Store ADB-BUTINACA in a cool, dry, dark place away from heat and moisture. Handle with gloves, eye protection, and adequate ventilation. Follow institutional waste disposal protocols for any unused material.
Structure-Activity Relationships
Structural modifications to ADB-BUTINACA and related compounds like JWH-210, Mescaline produce measurable differences in receptor affinity, selectivity, and metabolic stability, offering insight into medicinal chemistry design principles.
Sample Preparation for Analysis
Preparing ADB-BUTINACA for analysis requires careful handling to avoid contamination and degradation. Samples are dissolved in appropriate solvents, diluted, and analyzed under validated conditions.
Post-Purchase Support
Our commitment does not end at checkout. We provide post-purchase support for handling, storage, and documentation requests related to ADB-BUTINACA.
History and Background
Synthetic cannabinoids and phenethylamines have a rich history in pharmacological and chemical research. Many of these compounds were first synthesized in academic settings to explore receptor pharmacology before appearing in unregulated markets. Understanding this history provides context for their current classification and research applications.
Receptor Binding Studies
Researchers use radioligand binding assays to measure the affinity of reference compounds for their target receptors. Functional assays help determine whether a compound acts as an agonist, antagonist, or partial agonist. These studies require high-purity reference materials to produce reliable concentration-response curves.
Analytical Standards and Calibration
Analytical laboratories use reference compounds as calibration standards for chromatography and mass spectrometry. These standards enable quantitative analysis of unknown samples and validation of detection methods. Without authenticated reference materials, forensic and research results may be unreliable.
Immunological and Peripheral Research
Beyond central nervous system effects, some receptor targets are expressed in peripheral tissues and immune cells. Reference compounds help researchers explore these peripheral effects, contributing to a fuller understanding of receptor biology across different organ systems.
Method Development in Analytical Labs
Analytical laboratories develop and validate methods for detecting reference compounds in complex matrices. Reference materials are used to establish retention times, mass spectra, and calibration curves. As new compounds emerge, updated reference materials are essential for keeping detection methods current.
Educational Applications
Reference materials in this category are also used in educational settings to teach analytical chemistry, pharmacology, and forensic science. Students learn techniques such as chromatography, spectroscopy, and receptor assays using authentic compounds.
Regulatory Reporting and Compliance
Research institutions may require documentation of controlled substance use for regulatory compliance. The Certificate of Analysis, purchase records, and usage logs help satisfy these requirements. Global Research Lab provides the documentation needed to support compliant research programs.
Collaborative Research Networks
Researchers often participate in collaborative networks to share data, methods, and reference materials. Using verified compounds from a common supplier improves data comparability across institutions. Our batch-specific documentation supports this collaborative approach.
Training and Education
Proper training is essential for personnel working with controlled research chemicals. Training should cover chemical hazards, safe handling, emergency procedures, and waste disposal. Institutions should maintain records of training and ensure that all users understand the risks and regulations.
Data Interpretation in Research
Interpreting data from receptor pharmacology and forensic research requires attention to compound purity, assay conditions, and statistical rigor. Reference materials with documented purity allow researchers to calculate accurate concentrations and compare results across studies. Always cite the Certificate of Analysis when reporting findings.
Future Directions in Research
Research in this field continues to evolve as new compounds and receptor subtypes are discovered. Verified reference materials remain essential tools for mapping receptor systems and developing selective analytical methods. Ongoing innovation in this field depends on consistent access to well-characterized reference materials.
Responsible Disposal
Unused or expired reference materials should be disposed of according to institutional hazardous waste protocols. Do not discard research chemicals in regular trash or pour them down drains. Contact your safety officer for guidance on proper disposal procedures.
Choosing the Right Reference Material
Selecting the appropriate reference material depends on the specific research question. Consider the target receptor, required purity level, and analytical method when choosing a compound. Consult the Certificate of Analysis and Safety Data Sheet to confirm the material meets your research requirements.
Comparative Chemistry Across the Catalog
Comparing this compound with other products in our catalog helps researchers understand how scaffold and substituent changes influence receptor binding, metabolic stability, and detection characteristics. This comparative approach is fundamental to structure-activity relationship studies and medicinal chemistry research.
Quality Control Processes
Global Research Lab implements rigorous quality control processes for every batch. Independent laboratories perform identity and purity testing using validated analytical methods. Results are compiled into a Certificate of Analysis that accompanies each order, ensuring transparency and traceability.
Long-Term Research Programs
For laboratories running long-term research programs, consistent access to well-characterized reference materials is essential. Global Research Lab supports these programs with reliable supply chains, bulk ordering options, and dedicated customer support for recurring research needs.
Understanding Purity Specifications
Purity specifications indicate the percentage of the target compound present in a sample, with the remainder consisting of solvents, byproducts, or trace impurities. Higher purity materials produce more reliable and reproducible results in analytical and pharmacological studies. Always review the Certificate of Analysis for exact purity figures before beginning research.
Documentation for Publications
When publishing research involving reference materials, proper documentation of compound source, batch number, and purity is essential for peer review and reproducibility. Global Research Lab provides all the necessary documentation to support rigorous scientific publication standards.
Institutional Procurement Support
Universities, government laboratories, and private research organizations often have specific procurement requirements. Our team can work with purchasing departments to provide invoices, safety documentation, and any additional paperwork needed for institutional compliance.
Final Considerations
When selecting a reference material for your research program, prioritize suppliers who provide transparent documentation, discreet shipping, and responsive customer support. Global Research Lab meets these standards for every order in the synthetic cannabinoids and phenethylamine research chemical category.
Frequently Asked Questions About ADB-BUTINACA
Can I buy ADB-BUTINACA online for research?
Yes, qualified researchers can buy ADB-BUTINACA online from Global Research Lab for controlled laboratory use.
Is ADB-BUTINACA tested for purity?
Yes. Every batch ships with a Certificate of Analysis verifying identity and purity.
How is ADB-BUTINACA shipped?
Orders are packaged discreetly and shipped via tracked courier services.
What payment methods are accepted?
We accept Bitcoin, PayPal, Zelle, Chime, Apple Pay, and other secure methods.
Can ADB-BUTINACA be used for human consumption?
No. ADB-BUTINACA is sold strictly for research purposes and is not intended for human or animal consumption.
Do you offer bulk ADB-BUTINACA orders?
Yes. Contact our support team for bulk pricing and availability.
Definitions
- ADB-BUTINACA
- a potent indazole carboxamide synthetic cannabinoid used as a reference material in laboratory research.
- Certificate of Analysis
- A document reporting batch-specific analytical results.
- Structure-Activity Relationship
- The study of how chemical structure affects biological activity.
- Forensic Toxicology
- The discipline focused on detecting substances in biological and environmental samples.
- Pharmacokinetics
- The study of how a compound is absorbed, distributed, metabolized, and excreted.
Order ADB-BUTINACA reference material today and receive batch-verified documentation, discreet shipping, and dedicated research-chemical support from Global Research Lab. Explore related products such as JWH-210, Mescaline.
Adb-butinaca
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ADB-BUTINACA (CAS 2682867-55-4) is a highly potent, indazole-derived synthetic cannabinoid receptor agonist (SCRA) characterized by a tert-leucinamide side chain and a butyl tail. In scientific and forensic procurement, it is primarily sourced as an analytical reference standard for liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography-mass spectrometry (GC-MS) workflows. The compound is extensively utilized to map complex metabolic pathways—specifically CYP2C19, CYP3A4, and CYP3A5-mediated biotransformations—and to calibrate detection methods for its primary mono-hydroxylated and dihydrodiol metabolites in biological matrices. Furthermore, its nanomolar binding affinity to human CB1 and CB2 receptors makes it a critical reference material for in vitro functional assays, including β-arrestin 2 recruitment and membrane potential evaluations [1].
Research Fit
Substituting ADB-BUTINACA with closely related SCRAs, such as ADB-PINACA or MDMB-4en-PINACA, severely compromises analytical accuracy and pharmacological modeling. In forensic toxicology, generic substitution fails because structural modifications—such as substituting the butyl tail with a pentyl or fluorinated alkyl group—drastically alter the phase I metabolic profile, yielding entirely different urinary biomarkers that invalidate LC-MS/MS calibration curves. In pharmacological contexts, minor structural deviations result in significant shifts in receptor binding kinetics; for instance, altering the tail or amide core directly impacts the Ki values at the CB1 receptor. Consequently, laboratories must procure the exact ADB-BUTINACA standard to ensure reproducible retention times, precise mass fragmentation matching, and accurate baseline establishment in competitive binding assays .
Substitution Risk
CB1/CB2 Receptor Binding Affinity Calibration
In competitive binding assays, ADB-BUTINACA demonstrates sub-nanomolar affinity for both human cannabinoid receptors, recording a Ki of 0.299 nM at CB1 and 0.912 nM at CB2. This represents a significantly tighter binding profile compared to baseline phytocannabinoids such as THC, which typically exhibit CB1 affinities in the double-digit nanomolar range. The compound functions as a full agonist with an efficacy (Emax) ranging from 101% to 290% depending on the assay conditions [1].
| Evidence Dimension | CB1 Receptor Binding Affinity (Ki) |
| Target Compound Data | 0.299 nM |
| Comparator Or Baseline | THC (Baseline phytocannabinoid, >10 nM) |
| Quantified Difference | Over 30-fold higher binding affinity at the CB1 receptor |
| Conditions | In vitro competitive binding assay using human CB1/CB2 receptors expressed in HEK-293 cells |
Procuring this standard provides researchers with a highly reliable, high-affinity full agonist control for calibrating cannabinoid receptor functional assays.
In Vitro Functional Potency Benchmarking for SAR Modeling
Functional activation evaluations using fluorescence-based membrane potential assays demonstrate that ADB-BUTINACA possesses an EC50 of 6.4 nM to 11.5 nM at the CB1 receptor. When compared head-to-head with structurally related synthetic cannabinoids, its potency closely mirrors that of ADB-4en-PINACA (EC50 = 11.6 nM) but is slightly less potent than MDMB-4en-PINACA (EC50 = 4.3 nM). This specific functional footprint is critical for structure-activity relationship (SAR) mapping [1].
| Evidence Dimension | CB1 Receptor Functional Potency (EC50) |
| Target Compound Data | 11.5 nM |
| Comparator Or Baseline | MDMB-4en-PINACA (4.3 nM) and ADB-4en-PINACA (11.6 nM) |
| Quantified Difference | 2.6-fold lower potency than MDMB-4en-PINACA; equivalent to ADB-4en-PINACA |
| Conditions | β-arrestin 2 recruitment and intracellular calcium release assays |
Enables precise SAR modeling by providing a quantified functional benchmark for tert-leucinamide SCRAs with a butyl tail.
Pharmacokinetic Profiling for Rapid-Clearance Toxicology
In vivo pharmacokinetic studies in rat models indicate that ADB-BUTINACA undergoes rapid absorption and metabolism, characterized by a Tmax of 2.8 ± 0.5 hours and a half-life (t1/2) of 4.4 ± 1.1 hours. In human liver microsome assays, the estimated half-life is less than 30 minutes, leading to the rapid formation of specific mono-hydroxylated and dihydrodiol metabolites. This rapid clearance profile strictly differentiates it from longer-acting baseline cannabinoids and necessitates the use of the exact parent compound to generate accurate LC-MS/MS calibration standards for its transient metabolites [1].
| Evidence Dimension | In Vivo Half-Life (t1/2) |
| Target Compound Data | 4.4 ± 1.1 hours (rat plasma); < 30 min (human liver microsomes) |
| Comparator Or Baseline | Traditional long-acting cannabinoids (t1/2 > 24 hours) |
| Quantified Difference | Significantly accelerated metabolic clearance requiring specific metabolite biomarker tracking |
| Conditions | UPLC-MS/MS quantification in rat plasma and human liver microsome assays |
Essential for toxicological laboratories needing to establish accurate pharmacokinetic models and detection windows for rapid-clearance SCRAs.
Mass Spectrometry Resolution for Forensic Impurity Profiling
In forensic GC-MS and LC-QTOF-MS workflows, ADB-BUTINACA is identified by its distinct parent mass (m/z 330.4) and specific fragmentation patterns. When compared to closely related analogs like APP-BUTINACA or ADB-PINACA, ADB-BUTINACA exhibits distinct retention times (e.g., 7.77 min under standard GC-MS protocols) and distinct product ions. Procuring the certified reference material with ≥98% purity is mandatory to prevent false positives and ensure accurate peak integration during the impurity profiling of seized materials [1].
| Evidence Dimension | Chromatographic Retention and Mass Fragmentation |
| Target Compound Data | Parent mass m/z 330.4; specific GC-MS retention time (e.g., 7.77 min) |
| Comparator Or Baseline | APP-BUTINACA and ADB-PINACA (overlapping structural features) |
| Quantified Difference | Distinct retention times and fragmentation pathways enabling baseline resolution |
| Conditions | GC-MS and LC-QTOF-MS analysis of seized materials and biological extracts |
Ensures absolute analytical certainty and reproducibility when resolving complex forensic or toxicological samples.
Forensic LC-MS/MS Calibration and Metabolite Identification
Utilizing the compound as a primary reference standard to identify and quantify its specific dihydrodiol and mono-hydroxylated metabolites in complex biological matrices (e.g., post-mortem blood, urine) [1].
In Vitro Cannabinoid Receptor Functional Assays
Deploying the compound as a high-affinity (Ki = 0.299 nM), full-agonist control in β-arrestin 2 recruitment and fluorescence-based membrane potential assays to map SCRA structure-activity relationships [2].
Pharmacokinetic and CYP450 Biotransformation Mapping
Employing the standard in human liver microsome and hepatocyte models to map the specific enzymatic pathways (CYP2C19, CYP3A4, CYP3A5) responsible for its rapid phase I metabolism [3].
Impurity Profiling and Seized Material Analysis
Using the standard in GC-MS and multivariate analysis workflows to quantify ADB-BUTINACA and identify associated organic impurities in seized e-liquids, establishing chemical linkages for forensic intelligence [4].
Application Fit Matrix
ADB BUTINACA – Premium Synthetic Cannabinoid for Scientific Research
Product description
ADB BUTINACA (also known as ADB-B) is a synthetic cannabinoid of the indazole class, specifically developed for advanced pharmacological and forensic research. This research chemical is frequently used to study its interaction with cannabinoid receptors (CB1 and CB2), which can provide valuable insights into receptor activity and signal transduction.
High Quality & Analytical Purity
Our ADB-BUTINACA is manufactured under strict GMP guidelines and undergoes extensive quality control, including HPLC , GC-MS , and NMR analysis , to guarantee a purity of ≥98%. This ensures reliable and reproducible research results.
Primary Research Purposes ADB BUTINACA
- Pharmacological Studies: Research into the effects and potency of synthetic cannabinoids
- Forensic Toxicology: Analysis and detection of new psychoactive substances (NPS)
- Receptor Research: Study of CB1 and CB2 receptor binding properties
- Metabolic Pathways: Research on breakdown products and biotransformation
Safety Regulations & Legal Status
ADB-BUTINACA is intended for research purposes only and should not be used as a consumer product. It is the buyer’s responsibility to verify that this substance is legal in their country. We recommend working only in a professional laboratory setting with appropriate safety precautions (lab coat, gloves, safety glasses).
Storage conditions
Store ADB-BUTINACA in a cool, dry environment (2–8 °C) , out of direct sunlight and in an airtight container to ensure stability.
Why Buy ADB-BUTINACA from Us?
✔ Certified Purity – Accurate quality control for optimal results
✔ Fast & Discreet Delivery – Reliable shipping within Europe
✔ Technical Support – Professional advice for research applications
✔ Competitive Prices – High-quality products at competitive prices
Important Notice
This product is not intended for human or animal use and should only be used by qualified researchers in a legally permitted context.
For more information about ADB-BUTINACA or other research chemicals, please feel free to contact us . We offer high-quality products for serious scientific applications. Iboga root bark buy ibogaine hcl online 1cp lsd o-dsmt 1vlsd
ADB-BUTINACA SCRA Reference Standard
ADB-BUTINACA (also known as ADMB-BINACA under EMCDDA naming standards) is a synthetic cannabinoid receptor agonist (SCRA) belonging to the indazole-3-carboxamide class [1]. It is a potent full agonist at both CB1 and CB2 cannabinoid receptors, with a reported CB1 binding affinity (Ki) of 0.29 nM and an EC50 of 6.36 nM [2]. ADB-BUTINACA features a 1-butyl substitution on the indazole ring, distinguishing it structurally from its benzyl-substituted analog ADB-BINACA [3]. The compound first emerged in Europe in 2019 and is classified as a Schedule I controlled substance in the United States . ADB-BUTINACA is supplied exclusively as an analytical reference standard for forensic and research applications .
ADB-BUTINACA Non-Interchangeability with SCRAs
In the forensic toxicology and clinical reference laboratory setting, synthetic cannabinoid receptor agonists within the same indazole-3-carboxamide class cannot be substituted for one another without compromising analytical validity. ADB-BUTINACA possesses a distinct metabolic profile that yields a unique constellation of urinary and blood biomarkers — specifically metabolites B4 (dihydrodiol), B9 (N-butyl hydroxylation), and B16 (indazole hydroxylation) — which differ fundamentally from those of close structural analogs such as ADB-4en-PINACA [1]. Furthermore, ADB-BUTINACA is an isomer of AB-PINACA, and the two compounds exhibit distinguishable fragmentation patterns under mass spectrometry that are essential for unambiguous identification in seized materials and biological specimens [2]. The procurement of a verified reference standard of ADB-BUTINACA, rather than reliance on an in-class substitute, is therefore indispensable for the accurate identification, quantitation, and toxicological interpretation of this specific compound in casework.
ADB-BUTINACA Differentiation Evidence vs. Analogs
CB1 Receptor Binding: ADB-BINACA Comparison
ADB-BUTINACA differs from ADB-BINACA by a single structural modification: a 1-butyl substitution on the indazole ring rather than a 1-benzyl group [1]. This structural distinction translates into differentiated CB1 receptor binding kinetics. ADB-BUTINACA exhibits a CB1 binding affinity (Ki) of 0.29 nM and a CB1 EC50 of 6.36 nM [2], whereas ADB-BINACA demonstrates a CB1 Ki of 0.33 nM and an EC50 of 14.7 nM [3]. The nomenclature confusion between these two compounds — with ADB-BUTINACA historically sold under the name ADB-BINACA — necessitates procurement of the correct CAS-specific reference material to avoid misidentification in analytical workflows [1].
ADB-BINACA Ki = 0.33 nM, EC50 = 14.7 nM
EC50 ~2.3-fold lower
CB1 Efficacy and Potency vs. JWH-018
ADB-BUTINACA demonstrates a substantially higher cannabinoid receptor potency relative to the archetypal SCRA JWH-018. Studies report that ADB-BUTINACA has a cannabinoid receptor potency and efficacy approximately three times higher than JWH-018 [1][2]. This class-level potency differential carries forensic and public health implications, as ADB-BUTINACA has been implicated in at least six fatal and eight nonfatal poisonings according to WHO data [3].
Metabolic Profile Comparison with ADB-4en-PINACA
In a direct head-to-head study using human hepatocyte incubations, ADB-BUTINACA and ADB-4en-PINACA demonstrated comparable in vitro CB1 potency (EC50: 11.5 nM vs 11.6 nM, respectively) [1]. However, their metabolic profiles diverge substantially: ADB-BUTINACA generated 21 identified in vitro metabolites, with 14 detected in authentic case samples, whereas ADB-4en-PINACA produced only 11 in vitro metabolites [1]. Furthermore, ADB-BUTINACA exhibits markedly higher real-world prevalence, being detected in 60.4% of SCRA-infused papers seized in Scottish prisons (January to July 2021), while ADB-4en-PINACA prevalence remained low [1].
21 in vitro metabolites (14 in case samples) vs 11
60.4% prevalence in Scottish prison seizures.
Isomer Discrimination from AB-PINACA
ADB-BUTINACA and AB-PINACA are structural isomers that co-elute poorly under certain chromatographic conditions, yet they exhibit diagnostically distinct fragmentation patterns under LC-MS/MS analysis. A direct analytical comparison study demonstrated that in ESI mode, the two isomers produce different characteristic fragment ions: m/z 201.2 is specific to ADB-BUTINACA, whereas m/z 215.2 is specific to AB-PINACA [1]. The study further noted that GC-MS provides clearer separation and differentiation based on retention time and EI fragmentation, though with lower sensitivity compared to LC-MS/MS [1].
Enzymatic Pathways and Urinary Biomarkers
Reaction phenotyping studies have elucidated the specific cytochrome P450 enzymes responsible for ADB-BUTINACA metabolism. The compound is rapidly eliminated via CYP3A4-, CYP2C19-, and CYP3A5-mediated metabolism [1]. A validated panel of four urinary metabolite biomarkers — three hydroxylated metabolites (M6, M11, and M14) and one oxidative deaminated metabolite (M15) — has been established for diagnosing ADB-BUTINACA consumption [1]. Notably, three major monohydroxylated metabolites (M6, M12, and M14) demonstrated greater metabolic stability compared to the parent drug [1].
Post-Mortem Toxicological Reference Ranges
A fatal monointoxication case involving ADB-BUTINACA mislabeled as MDPHP provided quantitative post-mortem reference data. Using a standard addition LC-MS/MS method, ADB-BUTINACA concentrations were determined as 34.5 ng/mL in femoral blood, 101 ng/mL in heart blood, and 3.1 ng/mL in urine [1]. The powder at the fatality scene was identified as ADB-BUTINACA with high purity (>98%) [1]. A toxicological significance score (TSS) of 3 was assigned for this monointoxication [1].
ADB-BUTINACA Forensic and Toxicology Applications
Forensic Toxicology: Confirmation of Exposure
Forensic toxicology laboratories require ADB-BUTINACA reference standards to confirm exposure in ante-mortem and post-mortem biological specimens. Based on validated human hepatocyte metabolism studies, laboratories should target parent ADB-BUTINACA and metabolites B9 (N-butyl tail hydroxylation) and B16 (indazole ring hydroxylation) as blood biomarkers, and metabolites B4 (dihydrodiol), B9, and B16 as urinary biomarkers [1]. Quantitative post-mortem reference values from documented fatal intoxication cases (femoral blood: 34.5 ng/mL; heart blood: 101 ng/mL) provide benchmarks for interpreting case findings [2].
Seized Drug Differentiation from Analog SCRAs
Forensic chemistry laboratories analyzing seized materials must unambiguously distinguish ADB-BUTINACA from structurally related compounds, particularly its isomer AB-PINACA and its benzyl analog ADB-BINACA. LC-MS/MS analysis using the characteristic fragment ion m/z 201.2 provides definitive identification of ADB-BUTINACA and differentiation from AB-PINACA (m/z 215.2) [3]. The high prevalence of ADB-BUTINACA in seized materials — detected in 60.4% of SCRA-infused papers in Scottish prisons between January and July 2021 [1] — underscores the operational necessity of maintaining certified reference standards for this specific compound.
CYP-Mediated Metabolism and Biomarker Discovery
Research groups engaged in SCRA metabolism studies utilize ADB-BUTINACA reference standards to elucidate biotransformation pathways and develop analytical methods. The compound’s metabolism has been characterized as CYP3A4-, CYP2C19-, and CYP3A5-mediated, with a panel of four validated urinary biomarkers (hydroxylated metabolites M6, M11, M14 and oxidative deaminated metabolite M15) established for consumption monitoring [4]. This enzymatic and metabolic characterization provides a template for developing and validating LC-MS/MS methods for detecting ADB-BUTINACA exposure in clinical and forensic settings [4].
References
- [1] Frontiers in Toxicology. Synthetic cannabinoids in human post-mortem samples – ADB-BUTINACA and metabolites in three fatalities. (2026).
- [2] Sparkes, E., et al. Structure-activity relationships of valine, tert-leucine, and phenylalanine amino acid-derived synthetic cannabinoid receptor agonists related to ADB-BUTINACA. RSC Medicinal Chemistry, 13(2), 156-174 (2022).
- [3] World Health Organization (WHO). Critical review report: ADB-BUTINACA. 44th Expert Committee on Drug Dependence (2021).
- [4] Austin Publishing Group. Impurity Profiling of ADB-BUTINACA or MDMB-4en-PINACA e-Liquids via Multivariate Analysis. (2023).
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