2213-00-5 CCRIS 1702 CYCLOPROP(e)INDENE-6b(1H)-CARBOXYLIC ACID, 1a,2-DIFORMYL-1a,3a,4,5,6,6a-HEXAHYDR Cycloprop(e)indene-6b(1H)-carboxylic acid, 1a,2-diformyl-1a,3a,4,5,6,6a-hexahydro-5,5-dimethyl-, methyl ester, (1aS-(1a-alpha,3a-beta,6a-beta,6b-alpha))- Marasmic acid methyl ester Methyl marasmate