Pharmaceutical analytical standards

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

Results 23,871-23,880 of 35,292

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ImpurityLevels of characterisation

Cat. No.: P-C090-034
CAS: 57254-16-7
Formula: C₁₅H₁₃N₃O₃S₃
Family: Cefotaxime
Synonyms: (6R,7R)-7-Amino-3-(1,3-benzothiazol-2-ylsulfanylmethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

ImpurityLevels of characterisation

Cat. No.: P-C090-036
CAS: 126747-48-6
Formula: C₁₆H₁₇N₅O₇S₂
Family: Cefotaxime
Synonyms: (6R,7R)-3-(Acetyloxymethyl)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid

ImpurityLevels of characterisation

Cat. No.: P-C090-039
CAS: 123238-79-9
Formula: C₁₄H₁₃N₅O₅S₂
Family: Cefotaxime
Synonyms: Cefotaxime Impurity 25, (2E)-2-(2-Amino-1,3-thiazol-4-yl)-N-[(4R,5R)-3,11-dioxo-10-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undec-1(8)-en-4-yl]-2-methoxyiminoacetamide

ImpurityLevels of characterisation

Cat. No.: P-C090-040
CAS: 75679-12-8
Formula: C₁₄H₁₅N₅O₆S₂
Family: Cefotaxime
Synonyms: (2R)-2-[[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-2-[(2R)-7-oxo-1,2,4,5-tetrahydrofuro[3,4-d][1,3]thiazin-2-yl]acetic acid, Desacetylcefotaxime lactone M2

ImpurityLevels of characterisation

ImpurityLevels of characterisation

Cat. No.: P-C093-027
CAS: 95570-83-5
Formula: C₁₅H₂₁NO₆S
Family: Cefoxitin
Synonyms: tert-Butyl (6R,7S)-3-(acetyloxymethyl)-7-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

ImpurityLevels of characterisation

Cat. No.: P-C093-028
CAS: 95570-59-5
Formula: C₁₁H₁₃NO₆S
Family: Cefoxitin
Synonyms: (6R,7S)-3-(Acetyloxymethyl)-7-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

ImpurityLevels of characterisation

Cat. No.: P-C093-029
CAS: 2382598-64-1
Formula: C₉H₁₀N₂O₄S
Family: Cefoxitin
Synonyms: (4S,5R)-4-Amino-4-methoxy-10-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undec-1(8)-ene-3,11-dione

ImpurityLevels of characterisation

Cat. No.: P-C093-031
CAS: 772295-18-8
Formula: C₁₅H₁₅N₃O₇S₂
Family: Cefoxitin
Synonyms: (6R,7S)-3-(Carbamoyloxymethyl)-7-hydroxy-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

ImpurityLevels of characterisation

Cat. No.: P-C093-018
CAS: 40514-91-8
Formula: C₁₃H₂₀N₂O₄S
Family: Cefoxitin
Synonyms: tert-Butyl (6R,7S)-7-amino-7-methoxy-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

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