Stainless SteelChina Ethyl 1- (4-methoxyphenyl) -6- (4-nitrophenyl) -7-Oxo-4, 5, 6, 7-Tetrahydro-1h-Pyrazolo[3, 4-C]Pyridine-3-Carboxylate CAS No. 536759-91-8 Apixaban Impurity, Find details about China Chemical, Pharmaceutical Raw Material from Ethyl 1- (4-methoxyphenyl) -6- (4-nitrophenyl) -7-Oxo-4, 5, 6, 7-Tetrahydro-1h-Pyrazolo[3, 4-C]Pyridine-3-Carboxylate CAS No. 536759-91-8 Apixaban Impurity