Synonyms: 2-Propenoicacid, 3-(4-hydroxyphenyl)-, 4''-ester with 7'a-[(2-O-acetyl-b-D-glucopyranosyl)oxy]-1',3'a,4',7'a-tetrahydro-4'-hydroxy-2',2',4',6'-tetramethylspiro[cyclopropane-1,5'-[5H]inden]-3'(2'H)-one,[3'aR-[3'aa,4'a,7'aa(Z)]]-; Hypoloside B; Spiro[cyclopropane-1,5'-[5H]inden]-3'(2'H)-one,7'a-[[2-O-acetyl-4-O-[3-(4-hydroxyphenyl)-1-oxo-2-propenyl]-b-D-glucopyranosyl]oxy]-1',3'a,4',7'a-tetrahydro-4'-hydroxy-2',2',4',6'-tetramethyl-,[3'aR-[3'aa,4'a,7'aa(Z)]]-