... : C16H15F6N5O.H3PO4.H2O Molecular Weight: 523.33 Assay: Products: Sitagliptin phosphate Synonyms: 7-[(3R)-3-Amino-1-oxo-4-(2,4 ... ,5-trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine phosphate monohydrate CAS ... #: 654671-77-9 Molecular Formula: C16H15F6N5O.H3PO4.H2O Molecular Weight: 523.33 Assay: ≥99.5% SS ≤0 ...