Synonyms: (12E)-Labda-8(17),12,14-triene-19-oic acid methyl ester;(1S,4aβ,8aα)-Decahydro-1,4aβ-dimethyl-6-methylene-5β-[(E)-3-methyl-2,4-pentadienyl]-1β-naphthalenecarboxylic acid methyl ester;(E)-Labda-8(17),12,14-trien-19-oic acid methyl ester;Methyl trans-communate