1-Phenanthrenecarboxylic acid, 7-ethenyl-1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-1,4a,7-trimethyl-, methyl ester, (1R-(1alpha,4abeta,4balpha,7beta,10aalpha))- 3730-56-1 METHYL PIMARATE Methyl (1R-(1alpha,4abeta,4balpha,7beta,10aalpha))-7-ethenyl-1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-1,4a,7-trimethyl-1-phenanthrenecarboxylate