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Pharmaceutical analytical standards

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

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Results 3,601-3,610 of 59,523

Cefuroxime Impurity 39

ImpurityLevels of characterisation
Cat. No.
P-C109-069
Formula
C14H12N2O7S
Family
Cefuroxime
Synonyms
(6R,7R)-7-[[2-(Furan-2-yl)-2-oxoacetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefuroxime Impurity 40

ImpurityLevels of characterisation
Cat. No.
P-C109-070
Formula
C15H13N3O8S
Family
Cefuroxime
Synonyms
(6R,7R)-3-(Carbamoyloxymethyl)-7-[[2-(furan-2-yl)-2-oxoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefuroxime Impurity 41

ImpurityLevels of characterisation
Cat. No.
P-C109-071
Formula
C18H20N4O8S
Family
Cefuroxime
Synonyms
Ethyl (6R,7R)-3-(carbamoyloxymethyl)-7-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

Cefuroxime Impurity 45

ImpurityLevels of characterisation
Cat. No.
P-C109-075
Formula
C8H10N2O4S
Family
Cefuroxime
Synonyms
(6S,7R)-7-Amino-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefuroxime Impurity 47

ImpurityLevels of characterisation
Cat. No.
P-C109-077
Formula
C8H10N2O5S
Family
Cefuroxime
Synonyms
(6R,7R)-7-Amino-3-(hydroxymethyl)-5,8-dioxo-5lambda4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefuroxime Impurity 48

ImpurityLevels of characterisation
Cat. No.
P-C109-078
Formula
C24H26N6O10S3
Family
Cefuroxime
Synonyms
(6R,7R)-7-[[(6R,7R)-7-[[(6R,7R)-7-Amino-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Cefuroxime Impurity 49

ImpurityLevels of characterisation
Cat. No.
P-C109-079
Formula
C16H20N4O8S2
Family
Cefuroxime
Synonyms
(6R,7R)-7-[[(2R)-2-Amino-2-[(2R)-4-carboxy-5-(hydroxymethyl)-3,6-dihydro-2H-1,3-thiazin-2-yl]acetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

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