CAS Number: 1620233-77-3
Chemical Name: rac-Sitagliptin-d4 Hydrochloride
Molecular Formula: C16H12D4ClF6N5O
Molecular Weight: 447.8

CAS Number: 486459-71-6
Chemical Name: Sitagliptin Hydrochloride
Molecular Formula: C16H16ClF6N5O
Molecular Weight: 443.78