Synonyms: (4S)-4,4aβ,5,6,7,7aβ-Hexahydro-4β,7β-dimethylcyclopenta[c]pyran-3(1H)-one;(4S,4aβ,7aβ)-4β,7β-Dimethyloctahydrocyclopenta[c]pyran-3-one;Isoiridomyrmecin;Isoiridomyrmercin;Isoirridomyrmercin;Cyclopenta(C)pyran-3(1H)-one, hexahydro-4,7-dimethyl-, (4S-(4-alpha,4A-alpha,7-alpha,7A-alpha))-