Synonyms: 2-Propenoicacid, 2-methyl-, 9-[(b-D-glucopyranosyloxy)methyl]-2,3,3a,4,5,7,9a,9b-octahydro-3,6-dimethyl-2,7-dioxoazuleno[4,5-b]furan-4-ylester, [3S-(3a,3aa,4a,9aa,9bb)]-; Azuleno[4,5-b]furan,2-propenoic acid deriv.; (-)-Hypochoeroside B; Hypochoeroside B