Sitagliptin FP Impurity D

 2-​Buten-​1-​one, 1-​[5,​6-​dihydro-​3-​(trifluoromethyl)​-​1,​2,​4-​triazolo[4,​3-​a]​pyrazin-​7(8H)​-​yl]​-​4-​(2,​4,​5-​trifluorophenyl)​-​, (2E)​-

(2E)-1-[5,6-Dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8H)-yl]-4-(2,4,5-trifluorophenyl)-2-buten-1-one

Sitagliptin Impurity S

Sitagliptin Deamino Impurity 1

3-​Desamino-​2,​3-​dehydro Sitagliptin

Sitagliptin Styrylacetyl Analog

Sitagliptin Phenylcrotonyl Analog

C₁₆ H₁₂ F₆ N₄ O

95%

Pharmaceutical Impurity