134439-71-7 9beta-Hydroxymarasmic acid CCRIS 5099 Cycloprop(e)indene-6b(1H)-carboxylic acid, 1a,2-diformyl-1a,3a,4,5,6,6a-hexahydro-3a,hydroxy-5,5-dimethyl-, (1aR-(1aalpha,3abeta,6abeta,6balpha))-