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Pharmaceutical analytical standards

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

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Results 2,661-2,670 of 36,550

Cefuroxime Impurity 31

ImpurityLevels of characterisation
Cat. No.
P-C109-061
Formula
C35H35N7O16S2
Family
Cefuroxime
Synonyms
1-Acetyloxyethyl (6R,7R)-3-[[(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-carbonyl]oxymethyl]-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 32

ImpurityLevels of characterisation
Cat. No.
P-C109-062
Formula
C35H37N7O17S2
Family
Cefuroxime
Synonyms
(2R)-2-[(2R)-4-(1-Acetyloxyethoxycarbonyl)-5-[[(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-carbonyl]oxymethyl]-3,6-dihydro-2H-1,3-thiazin-2-yl]-2-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]acetic acid

Cefuroxime Impurity 33

ImpurityLevels of characterisation
Cat. No.
P-C109-063
Formula
C35H37N7O17S2
Family
Cefuroxime
Synonyms
(2R)-2-[(2R)-4-[[(6R,7R)-2-(1-Acetyloxyethoxycarbonyl)-7-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methoxycarbonyl]-5-(carbamoyloxymethyl)-3,6-dihydro-2H-1,3-thiazin-2-yl]-2-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]acetic acid

Cefuroxime Impurity 34

ImpurityLevels of characterisation
Cat. No.
P-C109-064
Formula
C36H38N8O18S2
Family
Cefuroxime
Synonyms
(2R)-2-[(2R)-4-(1-Acetyloxyethoxycarbonyl)-5-(carbamoyloxymethyl)-3-[(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-carbonyl]-2,6-dihydro-1,3-thiazin-2-yl]-2-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]acetic acid

Cefuroxime Impurity 35

ImpurityLevels of characterisation
Cat. No.
P-C109-065
Formula
C32H32N8O16S2
Family
Cefuroxime
Synonyms
(2R)-5-(Carbamoyloxymethyl)-3-[(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-carbonyl]-2-[(R)-carboxy-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]methyl]-2,6-dihydro-1,3-thiazine-4-carboxylic acid

Cefuroxime Impurity 37

ImpurityLevels of characterisation
Cat. No.
P-C109-067
Formula
C31H31N7O15S2
Family
Cefuroxime
Synonyms
(2R)-3-[(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-carbonyl]-2-[(R)-carboxy-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]methyl]-5-(hydroxymethyl)-2,6-dihydro-1,3-thiazine-4-carboxylic acid

Cefuroxime Impurity 38

ImpurityLevels of characterisation
Cat. No.
P-C109-068
Formula
C31H29N7O14S2
Family
Cefuroxime
Synonyms
(2R)-2-[(2R)-1-[(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-carbonyl]-7-oxo-4,5-dihydro-2H-furo[3,4-d][1,3]thiazin-2-yl]-2-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]acetic acid

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

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