... )-5,6,7,8-tetrahydro-1,2,4-triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)butan-1-one; 1 ... -(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-4-(2,4,5-trifluorophenyl)butan-1-oneMolecular FormulaC16H15F6N5OMolecular ... index1.59Flash point274.277°CVapour Pressur0mmHg at 25°C Sitagliptin phosphate, CAS:654671-78-0, Best quality Sitagliptin ...