Synonyms: 2-Butenoicacid, 2-methyl-,5,6,7,8-tetrahydro-6-hydroxy-1,2,3,13-tetramethoxy-6,7-dimethylbenzo[3,4]cycloocta[1,2-f][1,3]benzodioxol-5-ylester, stereoisomer; Benzo[3,4]cycloocta[1,2-f][1,3]benzodioxole, 2-butenoicacid deriv.; Gomisin B; Schisantherin B; Schizantherin B; Wuweizi ester B