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

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5-Dechloro Roflumilast

ImpurityLevels of characterisation

Cat. No.: P-R080-021
CAS: 1391053-75-0
Formula: C₁₇H₁₅ClF₂N₂O₃
Family: Roflumilast
Synonyms: N-(3-Chloropyridin-4-yl)-3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzamide, Benzamide, N-(3-chloro-4-pyridinyl)-3-(cyclopropylmethoxy)-4-(difluoromethoxy)-

3-O-Decyclopropyl Roflumilast

ImpurityLevels of characterisation

Cat. No.: P-R080-018
CAS: 1391052-76-8
Formula: C₁₃H₈Cl₂F₂N₂O₃
Family: Roflumilast
Synonyms: N-(3,5-Dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxybenzamide, Benzamide, n-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxy-

25-Desacetyl Rifampicin

ImpurityLevels of characterisation

Cat. No.: P-R053-011
CAS: 16783-99-6
Formula: C₄₁H₅₆N₄O₁₁
Family: Rifampicin
Synonyms: Desacetylrifampicin, DESACETYLRIFAMPIN

Desacetyl Rifamycin S

ImpurityLevels of characterisation

Cat. No.: P-R053-015
CAS: 17555-51-0
Formula: C₃₅H₄₃NO₁₁
Family: Rifampicin
Synonyms: 25-Deacetoxy-25-hydroxyrifamycin S

Desacetyl Rifamycin SV

ImpurityLevels of characterisation

Cat. No.: P-R053-016
CAS: 17750-90-2
Formula: C₃₅H₄₅NO₁₁
Family: Rifampicin
Synonyms: Rifamycin, 25-O-deacetyl-

27-Desmethoxy-27-hydroxy-rifamycin SV

ImpurityLevels of characterisation

Cat. No.: P-R053-012
CAS: 31718-67-9
Formula: C₃₆H₄₅NO₁₂
Family: Rifampicin

N-Desmethyl Rifampicin

ImpurityLevels of characterisation

Cat. No.: P-R053-017
CAS: 13292-45-0
Formula: C₄₂H₅₆N₄O₁₂
Family: Rifampicin
Synonyms: N-Demethyl Rifampin, Demethylrifampicin

3,5-Dichloro-1-hydroxypyridin-4-imine

ImpurityLevels of characterisation

Cat. No.: P-R080-013
CAS: 91872-02-5
Formula: C₅H₄Cl₂N₂O
Family: Roflumilast
Synonyms: Roflumilast Impurity 17, 4-amino-3,5-dichloropyridine-N-oxide

1,2-Dichloro-3-(dichloromethyl)benzene

ImpurityLevels of characterisation

Cat. No.: P-C191-006
CAS: 57058-14-7
Formula: C₇H₄Cl₄
Family: Clevidipine
Synonyms: Clevidipine Impurity 25, Alpha,alpha,2,3-tetrachlorotoluene

2,5-Dichlorobenzaldehyde

ImpurityLevels of characterisation

Cat. No.: P-C191-007
CAS: 6361-23-5
Formula: C₇H₄Cl₂O
Family: Clevidipine
Synonyms: Clevidipine Impurity 22, Benzaldehyde, 2,5-dichloro-

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