4B-MAR Test Kit - Purity Test Kit for 4B-MAR

Find 4B-MAR purity test kits and reagent tests for substance identification, authenticity checks, and cleaner screening. Browse the most relevant options at PRO Test.

Also known as: 4'-br-4-mar, 4-bromo aminorex.

Drug purity testing kits come in 3 types: reagent tests, TLC and test strips. Use a multi-reagent kit to identify most common substances. Pair reagents with a TLC test kit to discover number and amount (%) of almost all ingredients. Use test strips to rule out fentanyl, nitazenes or xylazine.

About 4B-MAR

First definitively identified in Austria in January 2022 and sold online as racemic trans-diastereomer (approximately 90% assay purity). No peer-reviewed pharmacodynamic studies yet exist; structure-activity relationships and subjective reports suggest potency slightly lower than 4-methylaminorex but still active at sub-25 mg doses. User reports from Bluelight and research forums indicate threshold effects at 2-4 mg insufflated and functional amphetamine-like stimulation around 15-25 mg with 12-18 hour wakefulness but modest euphoria. Analytical characterization confirms bromine isotopic LC-HRMS signature (m/z 255.0133 [M+H]+) and chiral separation reveals racemic trans-diastereomer form. Purity differences between batches (85-98%) warn of potential inactive filler or active by-products.

No test is listed specifically for 4B-MAR.

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