On top of that, the indole Main is substituted at R3 with a carbonyl group that is also bonded to the napthalene moeity. Napthalene can be a bicyclic structure of two fused benzene rings. This carbonyl bridge of JWH-018 classifies it to be a ketone. JWH-018 is an analog of https://jwh01862604.smblogsites.com/32970980/not-known-details-about-spice