Impurities For API - 2-NITRO-p-PHENYLENE DIAMINE CAS#5307-14-2, ORTHO AMINO PHENOL (OAP) CAS#95-55-6, 4-NITRO-o-PHENYLENE DIAMINE CAS#5307-14-2, 4-CHLORO RESORCINOL CAS#95-88-5, 2-AMINO-4-METHYL-6-NITROPHENOL CAS#6265-07-2

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Impurities For API

A, B, C, D, E, F, H, I, K, L, M, N, O, P, Q, R, S, T, V

API	Impurity Name	Pharmacopie / Imp	Chemical structure	Send Enquiry
Famciclovir	Famciclovir-A ( 4-(2-amino-9H- purin-9-yl)-2- (hydroxymethyl) butyl acetate)	Imp A:
Famciclovir	Famciclovir-B ( 4-(2-amino-6- chloro-9H-purin-9- yl)butyl acetate)	Imp B
Fosinopril	Fosinopril cyclohexyl analogue (L-proline, 4-cyclohexyl-1-[ [[2-methyl-1- (1-oxopropoxy) propoxy](4-cyclohexy l butyl)phosphonyl] acetyl]-sodium salt)	Metabolite
Fosinopril	Fosinoprilate	Metabolite