|Chemical and physical data|
|Molar mass||447.623 g·mol−1|
|3D model (JSmol)|
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). It has been sold online as a designer drug, first being identified in Germany in December 2013.
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- Westphal F, Sönnichsen FD, Knecht S, Auwärter V, Huppertz L (April 2015). "Two thiazolylindoles and a benzimidazole: novel compounds on the designer drug market with potential cannabinoid receptor activity". Forensic Science International. 249: 133–47. doi:10.1016/j.forsciint.2015.01.014. PMID 25698514.