Synonyms:
bicyclo[3.2.0]hept-2-en-6-one,(1s,5r)- ; (-)-(1s,5r)-bicyclo[3.2.0]hept-2-en-6-one ; (-)-(1s 5r)-cis-bicyclo[3.2.0]hept-2-en- (1s,5r)-bicyclo[3.2.0]hept-2-en-6-one ; (-)-bicyclo[3.2.0]hept-2-en-6-one ; bicyclo[3.2.0]hept-2-en-6-one,(1s)- ; (-)-(1s 5r)-cis-bicyclo[3.2.0]hept-2-en- ; (1s,5r)-bicyclo[3.2.0]hept-2-en-6-one