CAS Number: 69125-70-8
Chemical Name: (5RS)-5-Ethyl-2,6-diimino-5-phenyltetrahydropyrimidin-4(1H)-one
Molecular Formula: C12H14N4O
Molecular Weight: 230.27

CAS Number: 58042-96-9
Chemical Name: (5RS)-5-Ethyl-6-imino-5-phenyldihydropyrimidine-2,4(1H,3H)-dione
Molecular Formula: C12H13N3O2
Molecular Weight: 231.25