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Pharmaceutical analytical standards

APIs, pharmacopoeial impurities, metabolites, nitrosamines and labelled standards.

APIs from A to Z →

Results 4,081-4,090 of 36,550

Entecavir Impurity 13

ImpurityLevels of characterisation
Cat. No.
P-E059-038
Formula
C12H15N5O3
Family
Entecavir
Synonyms
2-Amino-7-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one

Entecavir Impurity 14

ImpurityLevels of characterisation
Cat. No.
P-E059-039
Formula
C20H25N5O2Si
Family
Entecavir
Synonyms
2-Amino-9-[(1S,3R,4S)-4-[dimethyl(phenyl)silyl]-3-(hydroxymethyl)-2-methylidenecyclopentyl]-3H-purin-6-one

Entecavir Impurity 16

ImpurityLevels of characterisation
Cat. No.
P-E059-041
Formula
C15H19N5O5
Family
Entecavir
Synonyms
2-[[9-[(1S,3S,4S)-4-Hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6-oxo-1H-purin-2-yl]amino]propanoic acid

Entecavir Impurity 17

ImpurityLevels of characterisation
Cat. No.
P-E059-042
Formula
C15H19N5O5
Family
Entecavir
Synonyms
2-[[9-[(1R,3R,4S)-4-Hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6-oxo-1H-purin-2-yl]amino]propanoic acid

Entecavir Impurity 18

ImpurityLevels of characterisation
Cat. No.
P-E059-043
Formula
C15H19N5O5
Family
Entecavir
Synonyms
2-[[9-[(1S,3R,4R)-4-Hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6-oxo-1H-purin-2-yl]amino]propanoic acid

Entecavir Impurity 2

ImpurityLevels of characterisation
Cat. No.
P-E059-027
Formula
C52H49N5O5
Family
Entecavir
Synonyms
(1R,2S,3S,5R)-5-[2-[[(4-Methoxyphenyl)-diphenylmethyl]amino]-6-phenylmethoxypurin-9-yl]-3-phenylmethoxy-2-(phenylmethoxymethyl)cyclopentan-1-ol

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