(1R-(1alpha,4abeta,10aalpha))-(1,2,3,4,4a,9,10,10a-Octahydro-1,4a-dimethyl-7-(1-methylethyl)-1-phenanthryl)methyl methacrylate 2-Propenoic acid, 2-methyl-, ((1R,4aS,10aR)-1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-1-phenanthrenyl)methyl ester 67989-99-5 EINECS 268-023-0