194861-64-8 BUTANOIC ACID3,4-DIHYDROXY-2-METHYLENE-,(3AR,4S,5AR,6R,9S,9AS,9BR)-9- FORMYLDODECAHYDRO-6-HYDROXY-5A-METHYL-3- METHYLENE-2-OXONAPHTHO[1,2-B]FURAN-4-YL ESTER,(3R)- 66086-24-6 Tricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene-5,6,11,12-tetracarboxylic acid, tetrakis(1,1-dimethylethyl) ester, stereoisomer (9CI)