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Pharmaceutical analytical standards

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

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Guanine

ImpurityLevels of characterisation

Cat. No.: P-A028-030
CAS: 73-40-5
Formula: C₅H₅N₅O
Family: Aciclovir
Synonyms: 2-amino-1,7-dihydropurin-6-one, Mearlmaid

Hydroxy Anastrozole

ImpurityLevels of characterisation

Cat. No.: P-A155-029
CAS: 1809517-32-5
Formula: C₁₇H₁₉N₅O
Family: Anastrozole

6-Hydroxy Ondansetron

ImpurityLevels of characterisation

Cat. No.: P-O023-020
CAS: 110708-17-3
Formula: C₁₈H₁₉N₃O₂
Family: Ondansetron
Synonyms: Ondansetron Impurity N47

8-Hydroxy Ondansetron

ImpurityLevels of characterisation

Cat. No.: P-O023-025
CAS: 126671-71-4
Formula: C₁₈H₁₉N₃O₂
Family: Ondansetron
Synonyms: Ondansetron-M 8-hydroxy

3-Hydroxy Retinol

ImpurityLevels of characterisation

Cat. No.: P-V056-011
CAS: 6890-93-3
Formula: C₂₀H₃₀O₂
Family: Vitamin A
Synonyms: Retin-3,15-diol, Retinol, 3-hydroxy-

N-Hydroxy Risdiplam

ImpurityLevels of characterisation

Cat. No.: P-R066-015
CAS: 2250441-24-6
Formula: C₂₂H₂₃N₇O₂
Family: Risdiplam
Synonyms: Risdiplam metabolite M1

DL-(4-Hydroxy-3-methoxyphenyl)serine

ImpurityLevels of characterisation

Cat. No.: P-D194-011
CAS: 28865-97-6
Formula: C₁₀H₁₃NO₅
Family: Droxidopa
Synonyms: Droxidopa metabolite (3-om-dops), L-Tyrosine, beta-hydroxy-3-methoxy-, threo-

19-Hydroxy-4-androstene-3,17-dione

ImpurityLevels of characterisation

Cat. No.: P-D103-020
CAS: 510-64-5
Formula: C₁₉H₂₆O₃
Family: Dienogest
Synonyms: 19-Hydroxy-4-androsten-3,17-dione, 19-Hydroxyandrostendione

N-Hydroxyphthalimide

ImpurityLevels of characterisation

Cat. No.: P-D194-027
CAS: 524-38-9
Formula: C₈H₅NO₃
Family: Droxidopa
Synonyms: Droxidopa Impurity 14, 2-hydroxyisoindole-1,3-dione

Imidazole

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-O023-004
CAS: 288-32-4
Formula: C₃H₄N₂
Family: Ondansetron
Synonyms: 1H-imidazole, Glyoxaline

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