Synonyms: AC1O5XCF;21-(4-(Ethylidene)-2-tetrahydrofuranmethacryloyl)machaerinic acid;(3S,4aR,6aR,6aS,6bR,10S,12aR,14bR)-3-[(E)-3-[(4Z)-4-ethylideneoxolan-2-yl]-2-methylprop-2-enoyl]oxy-10-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylic acid;91452-89-0;Olean-12-en-28-oic acid, 21-((3-(4-ethylidenetetrahydro-2-furanyl)-2-methyl-1-oxo-2-propenyl)oxy)-3-hydroxy-, (3beta,21beta)-