CAS 1268883-11-9 1H-Cyclopropa[4,5]cyclopenta[1,2-c]pyrazole-3-carboxylic acid, 4,4a,5,5a-tetrahydro-1-(2-pyrazinyl)-, ethyl ester, (4aS,5aS)- (HCID 68182329)|化工社