China Sitagliptin Intermediates, 3- (Trifluoromethyl) -5, 6, 7, 8-Tetrahydro-[1, 2, 4]Triazolo[4, 3-a]Pyrazine Hydrochloride CAS No. 762240-92-6, Find details about China CAS No. 762240-92-6, Pharmaceutical Intermediate from Sitagliptin Intermediates, 3- (Trifluoromethyl) -5, 6, 7, 8-Tetrahydro-[1, 2, 4]Triazolo[4, 3-a]Pyrazine Hydrochloride CAS No. 762240-92-6