JWH-203 is an analgesic chemical from the phenylacetylindole family that acts as a cannabinoid agonist with approximately equal affinity at both the CB₁ and CB₂ receptors, having a Kᵢ of 8.0 nM at CB₁ and 7.0 nM at CB₂. Wikipedia
Molar mass: 339.858 g/mol