Chemical Name : 13-Ethyl-11-methylidenegon-4-en-17-one (as per EP) ; 13-Ethyl-11-methylenegon-4-en-17-one (as per USP)

Smiles : C=C1C[C@@]2(CC)[C@](CCC2=O)([H])[C@]3([H])CCC4=CCCC[C@]4([H])[C@]31[H]