PSB-SB-1202
# PSB-SB-1202

PSB-SB-1202 is a coumarin derivative which is an agonist at the cannabinoid receptors $CB_1$ and $CB_2,$ with a $CB_1$ Ki of 32nM and a $CB_2$ Ki of 49nM. It is also a weak antagonist at the related receptor GPR55, with an $IC_{50}$ of 6350nM, but has no significant affinity for GPR18.

