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

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Simvastatin

Simvastatin hydroxyl acid

Simvastatin

Simvastatin Acetate
Impurity-B (EP)

EP, BP

Imp B

Simvastatin

Simvastatin anhydro
Impurity-C (EP)

EP, BP
Imp C

Simvastatin

Simvastatin impurity-D (Lovastatin)

Sildenafil

N-desmethyl sildenafil

Metabolite

Sibutramine

Mono desmethyl
sibutramine (1-[1(4chlorocyclohexyl)
cyclobutyl]-N,3-
dimethylbutan-1-amine)

Metabolite