18444-89-8 1H-3a,6-Methanoazulene-3-carboxylic acid, 3,3beta,4,5,6beta,7,8,8aalpha-octahydro-7,7-dimethyl-8-methylene-, methyl ester 1H-3a,6-Methanoazulene-3-carboxylic acid, octahydro-7,7-dimethyl-8-methylene-, methyl ester, (3S,3aR,6R,8aS)- 24267-93-4 26410-02-6 EINECS 242-326-8 Methyl (3S-(3alpha,3aalpha,6alpha,8aalpha))-octahydro-7,7-dimethyl-8-methylene-1H-3a,6-methanoazulene-3-carboxylate