5,12-dimethyl-1,4,8,11-tetra-azacyclotetradeca-4,11-diene dihydroperchlorate

N',N'''-diethyl-N,N''-ethanediyl-di-urea

N,N'-(ethane-1,2-diyl)bis(2-methoxyacetamide)

2-氟环丙烷羧酸