Synonyms: Butanoicacid,3-formyl-1,1a,1b,4,4a,5,7a,7b,8,9-decahydro-4a,7b-dihydroxy-1,1,6,8-tetramethyl-5-oxo-9aH-cyclopropa[3,4]benz[1,2-e]azulene-9,9a-diylester, [1aR-(1aa,1bb,4ab,7aa,7ba,8a,9b,9aa)]-;9aH-Cyclopropa[3,4]benz[1,2-e]azulene, butanoic acid deriv.