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Formula | C28H37N3O2 |
Molar mass | 447.623 g·mol−1 |
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MCHB-1 is a benzimidazole derived drug which was researched as an analgesic but never developed for medical use. It acts as a potent agonist of the CB2 receptor, with an EC50 of 0.52nM at CB2, and ~30x selectivity over CB1 (Ki of 110nM at CB1 vs 3.7nM at CB2).[1][2] It has been sold online as a designer drug, first being identified in Germany in December 2013.[3]