MDMB-CHMINACA is an indazole-based synthetic cannabinoid that acts as a potent agonist of the CB₁ receptor, and has been sold online as a designer drug. It was invented by Pfizer in 2008, and
is one of the most potent cannabinoid agonists known, with a binding affinity of 0.0944 nM at CB₁, and an EC₅₀ of 0.330 nM