3,6-Methano-2,4,7-trioxacyclopenta(cd)cycloprop(a)azulen-5(1H)-one, octahydro-6a,7b-dihydroxy-7c-methyl-8-(1-methylethenyl)-, (2aS-(2aalpha,3alpha,6alpha,6aalpha,6bbeta,7abeta,7balpha,7calpha,8S*))- 35481-77-7 Corianin