Pharmaceutical analytical standards

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

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ImpurityLevels of characterisation

Cat. No.: P-C100-039
CAS: 158183-05-2
Formula: C₂₀H₂₂N₄O₄S₃
Family: Ceftazidime
Synonyms: tert-Butyl 2-[(Z)-[1-(2-amino-1,3-thiazol-4-yl)-2-(1,3-benzothiazol-2-ylsulfanyl)-2-oxoethylidene]amino]oxy-2-methylpropanoate, Ceftazidime intermediate

ImpurityLevels of characterisation

Cat. No.: P-C100-045
CAS: 50382-11-1
Formula: C₆H₈ClNO₄
Family: Ceftazidime
Synonyms: Ethyl (E)-4-chloro-3-hydroxy-2-nitrosobut-2-enoate, Ethyl gamma-chloro-alpha-oximinoacetoacetate

ImpurityLevels of characterisation

Cat. No.: P-C100-046
CAS: 64513-00-4
Formula: C₇H₉N₃O₃S
Family: Ceftazidime
Synonyms: Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate, ethyl (2E)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyiminoacetate

ImpurityLevels of characterisation

Cat. No.: P-C100-017
CAS: 83654-89-1
Formula: C₈H₉IN₂O₃S
Family: Ceftazidime
Synonyms: (6R,7R)-7-Amino-3-(iodomethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

ImpurityLevels of characterisation

Cat. No.: P-C100-023
CAS: 2630911-86-1
Formula: C₂₂H₂₂N₆O₇S₂
Family: Ceftazidime
Synonyms: (6R,7S)-7-[[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-(2-carboxypropan-2-yloxyimino)acetyl]amino]-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate, Ceftazidime 7-Epimer

ImpurityLevels of characterisation

Cat. No.: P-C100-025
CAS: 73547-69-0
Formula: C₄₅H₄₄N₆O₇S₂
Family: Ceftazidime
Synonyms: (6R,7R)-7-[[(2Z)-2-[2-Methyl-1-[(2-methylpropan-2-yl)oxy]-1-oxopropan-2-yl]oxyimino-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetyl]amino]-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate, Ceftazidime Impurity D

ImpurityLevels of characterisation

Cat. No.: P-C110-022
CAS: 170571-01-4
Formula: C₁₇H₁₂F₃N₃O₄S
Family: Celecoxib
Synonyms: Carboxylic acid celecoxib, 4-[1-(4-sulfamoylphenyl)-3-(trifluoromethyl)pyrazol-5-yl]benzoic acid

ImpurityLevels of characterisation

Cat. No.: P-C110-023
CAS: 1061214-09-2
Formula: C₁₇H₁₅F₃N₂O₃S
Family: Celecoxib
Synonyms: Benzenesulfonamide, 4-((3-(4-methylphenyl)-3-oxo-1-(trifluoromethyl)propylidene)amino)-

ImpurityLevels of characterisation

Cat. No.: P-C110-013
CAS: 915280-81-8
Formula: C₈H₈F₃N₃O₃S
Family: Celecoxib
Synonyms: 4-(2-(2,2,2-Trifluoroacetyl)hydrazinyl)benzenesulfonamide, Celecoxib Impurity F

ImpurityLevels of characterisation

Cat. No.: P-C110-008
CAS: 720-94-5
Formula: C₁₁H₉F₃O₂
Family: Celecoxib
Synonyms: 1-(4-Methylphenyl)-4,4,4-trifluorobutane-1,3-dione, 4,4,4-Trifluoro-1-(4-methylphenyl)butane-1,3-dione

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