Buy 4B-MAR Powder Online | High-Purity Substituted Aminorex Research Chemical

Introduction to Buy 4B-MAR Powder

Buy 4B-MAR Powder (4-Bromo-4-methylaminorex), designated in pharmacological literature as a novel synthetic 2-amino-5-aryloxazoline, is a highly potent research chemical and a critical emerging reference standard in neuropharmacological and forensic research. Structurally, it is the 4-bromo analog of 4-methylaminorex (4-MAR) and the heavy-halogenated counterpart to 4F-MAR, featuring a bromine atom at the 4-position of the phenyl ring alongside the characteristic rigid oxazoline core.

Unlike classical phenethylamines or cathinones which feature flexible aminoalkyl side chains, 4B-MAR incorporates this chain into a rigid oxazoline ring fused to the phenyl group. This conformational lock drastically alters the molecule’s three-dimensional shape, fundamentally changing its interaction with monoamine transporters. Furthermore, the 4-bromo group provides profound “metabolic shielding” by blocking hepatic 4-hydroxylation, while significantly increasing the molecule’s lipophilicity and molecular weight compared to its fluoro and chloro counterparts. 4B-MAR functions as a potent dopamine and norepinephrine releasing agent (MRA) and reuptake inhibitor (DNRI), exhibiting exceptionally high efficacy at DAT and NET with minimal SERT activity. Supplied as a stable hydrochloride (HCl) crystalline powder, this format offers exceptional versatility for laboratories requiring custom volumetric dosing for in-vitro assay preparation and analytical calibration. Note: This product is strictly intended for in-vitro research and analytical purposes only.

Key Features and Benefits – Buy 4B-MAR Powder

• Raw Powder Versatility: Supplied as a pure, crystalline powder, this format allows researchers to create precise, custom-concentration volumetric solutions tailored to unique in-vitro assay requirements, eliminating the variables of pre-mixed liquids or fixed-dose units.
• Heavy-Halogen SAR Mapping: 4B-MAR provides researchers with a vital tool to study the structural-activity relationships (SAR) of heavy para-halogenation, mapping how the increased steric bulk and lipophilicity of a bromine atom (vs. fluorine in 4F-MAR) alters DAT/NET binding kinetics and metabolic clearance.
• Conformational Constraint Profiling: The rigid oxazoline core allows for direct comparative studies against flexible 4-bromoamphetamine, isolating how conformational lock dictates subtype selectivity and releasing efficacy at monoamine transporters.
• Profound Metabolic Shielding: The 4-bromo substitution completely blocks primary aromatic 4-hydroxylation, drastically extending metabolic stability and altering bioavailability compared to non-halogenated 4-MAR.
• Catecholamine-Selective Modeling: Due to its minimal SERT efficacy, 4B-MAR is a premier reference standard for modeling pure dopaminergic and noradrenergic release in vitro, allowing researchers to isolate these pathways without serotonergic confounding variables.
• Analytical Standard: Essential for forensic and analytical laboratories requiring pure reference materials to validate LC/MS and GC/MS instruments and detect emerging brominated oxazoline-class NPS in biological matrices.

Product Specifications

• Chemical Name: 4-bromo-4-methyl-5-phenyl-4,5-dihydro-1,3-oxazol-2-amine hydrochloride
• Common Designation: 4B-MAR / 4-Bromo-4-methylaminorex
• CAS Number: Refer to Certificate of Analysis
• Class: Substituted Aminorex / 2-Amino-5-aryloxazoline / DNRI / Research Chemical
• Form: Crystalline Powder (Hydrochloride Salt)
• Purity: ≥ 98% (Verified by Independent Third-Party Testing)
• Appearance: White to off-white fine crystalline powder
• Storage Requirements: Store in a cool, dry, dark environment (ideally -20°C for long-term archival). Keep container tightly sealed under inert gas to prevent hygroscopic absorption and oxidation.
• Solubility: Freely soluble in water, DMSO, and ethanol.

Applications and Usage

4B-MAR Powder is exclusively designated for in-vitro (outside a living organism) research and analytical applications. Common laboratory applications include:

• Monoamine Transporter Assays: Investigating the compound’s ultra-high affinity and efficacy as a dopamine and norepinephrine releasing agent and reuptake inhibitor using isolated synaptosomal preparations, and contrasting its SERT/DAT/NET selectivity profile against flexible phenethylamines.
• Heavy-Halogen Oxazoline SAR Studies: Contrasting the pharmacokinetic properties and receptor conformational changes induced by 4-bromo substitution (4B-MAR) versus 4-fluoro (4F-MAR) and non-halogenated (4-MAR) aminorexes to map the steric and lipophilic limits of the transporter binding pockets.
• Metabolic Pathway Studies: Analyzing the hepatic breakdown of brominated aminorex derivatives using hepatocyte cultures and liver microsomes, specifically quantifying the blockage of 4-hydroxylation and the shift to alternative debromination and oxidative metabolic routes.
• Forensic and Analytical Calibration: Utilizing 4B-MAR as a certified reference material (CRM) for GC/MS, LC/MS, and NMR spectroscopy to validate analytical instruments and detect 4B-MAR and its unique brominated biomarkers in biological matrices.

Disclaimer: This product is not for human or veterinary consumption. It must only be handled in controlled laboratory environments by qualified professionals.

Purity and Testing

We guarantee a purity level of ≥ 98% for our 4B-MAR Powder. Every batch undergoes rigorous, independent third-party testing to verify chemical identity, absolute purity, and the absence of dangerous residual solvents, heavy metals, or unreacted precursors (such as norephedrine or cyanogen bromide). Because substituted aminorexes are a heavily counterfeited class, we perform exhaustive screening to ensure the absolute absence of dangerous contaminants (such as 4-MAR, 4-Bromoamphetamine, or synthetic opioids). Crucially, we perform isomeric profiling to ensure the correct 4-bromo positional isomer and cis/trans stereochemistry, referencing the CoA. Certificates of Analysis (CoA) and Safety Data Sheets (SDS) are provided upon request.

Safety and Handling

WARNING: 4B-MAR IS A HIGHLY POTENT CENTRAL NERVOUS SYSTEM STIMULANT AND DOPAMINE RELEASING AGENT. EXTREME CAUTION IS REQUIRED.

• Personal Protective Equipment (PPE): Always wear appropriately sized nitrile gloves, chemical-resistant safety goggles, and an N95 or P100 particulate respirator when weighing or transferring the powder.
• Ventilation: Handling must only occur within a certified chemical fume hood to prevent the inhalation of aerosolized particles.
• Accidental Exposure: In the event of skin contact, wash the area thoroughly with soap and water. For eye contact, flush with copious amounts of water for at least 15 minutes.
• Hygiene: Remove contaminated clothing immediately and wash hands thoroughly after handling, even when PPE is utilized.
• Secure Storage: Keep powder locked away in a secure, access-controlled laboratory cabinet, out of reach of unauthorized personnel.

Global Shipping and Discreet Delivery

• Global Reach: We ship 4B-MAR Powder internationally, in strict compliance with international shipping regulations.
• Discreet Packaging: All orders are dispatched in unmarked, tamper-evident, and odor-proof packaging. The outer packaging does not indicate the nature of the contents.
• Rapid Processing: Orders are processed and shipped within 24 hours of cleared payment. We offer standard and express courier options with full end-to-end tracking.
• Secure Handling: Powders are double-sealed in moisture-barrier bags and placed within sturdy outer containers to prevent damage during transit.

Why Choose Us To Buy 4B-MAR Powder?

• Uncompromising Quality: We work directly with top-tier chemical synthesis laboratories and verify every batch in-house and via third-party labs before it reaches you.
• Total Transparency: We provide full analytical data. What is on the label is exactly what is in the bag—no fillers, no impurities, no compromises.
• Expert Customer Support: Our support team understands the nuances of research chemicals and is ready to assist with CoA requests, shipping inquiries, and technical questions.
• Secure Transactions: We utilize SSL encryption and accept secure, discreet payment methods, including major cryptocurrencies (Bitcoin, Monero, Ethereum) and secure bank transfers.

Legal and Safety Compliance

4B-MAR Powder is sold strictly as a research chemical and is not approved by the FDA, EMA, or any equivalent regulatory body for human or veterinary use.

It is the sole responsibility of the purchaser to ensure that the acquisition, possession, and use of 4-Bromo-4-methylaminorex comply with all local, state, national, and international laws. Warning: 4B-MAR is a potent central nervous system stimulant and catecholamine releasing agent. Ingestion can cause severe, life-threatening psychological and physiological effects, including severe tachycardia, hypertension, hyperthermia, acute cardiac events, and severe psychological distress. As a direct analog of 4-methylaminorex (a Schedule I controlled substance in many jurisdictions), it frequently falls under federal analogue acts or specific NPS legislation globally. We do not ship to regions where this compound is explicitly prohibited. By purchasing from us, you affirm that you are a qualified researcher or institutional buyer over the age of 18, and you assume all legal liability for the product upon delivery.

Frequently Asked Questions (FAQ)

Q1: What is 4B-MAR?
A: 4B-MAR (4-Bromo-4-methylaminorex) is a novel synthetic 2-amino-5-aryloxazoline. It is the 4-bromo analog of 4-methylaminorex. It acts primarily as a potent dopamine and norepinephrine releasing agent and reuptake inhibitor, blocking the reuptake and promoting the release of catecholamines in vitro.

Q2: What makes 4B-MAR different from 4F-MAR or 4-MAR?
A: 4B-MAR differs from 4-MAR by the 4-bromo group, which blocks primary hepatic 4-hydroxylation (metabolic shielding), increasing its metabolic stability. Compared to 4F-MAR, the bromine atom is significantly larger and more lipophilic than fluorine, which alters the molecule’s electron density and steric bulk, changing its binding kinetics at monoamine transporters. All three share the rigid oxazoline core that differentiates them from flexible phenethylamines.

Q3: Why choose the powder form over pellets or blotters?
A: The raw powder format offers maximum versatility for laboratory researchers. It allows for the creation of highly specific, custom-concentration volumetric stock solutions tailored to unique in-vitro assay requirements, streamlining high-throughput screening without the limitations of fixed-dose units.

Q4: Can 4B-MAR Powder be consumed?
A: Absolutely not. 4B-MAR is a potent CNS stimulant and DNRI. It is sold strictly for in-vitro laboratory and analytical research. Ingestion can cause unpredictable, severe psychological and cardiovascular effects and is strictly prohibited.

Q5: Do you provide a Certificate of Analysis (CoA)?
A: Yes. We provide a comprehensive CoA—including HPLC, GC/MS, and NMR data—for every batch we sell. This guarantees the identity, purity, and mass of the compound.

Q6: Is it legal to buy 4B-MAR in my country?
A: Legality varies drastically by country and is subject to change. Because it is a direct structural analog of 4-methylaminorex (Schedule I), it is often controlled under analogue acts or specific NPS bans. We cannot provide legal advice. It is your responsibility to research your local laws regarding this compound before placing an order.

Q7: How should I store 4B-MAR Powder for long-term research?
A: For maximum longevity, store 4B-MAR powder in an airtight, amber glass vial under an inert gas (like Argon) in a freezer set to -20°C. Keep away from direct sunlight, heat, and moisture.