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Pharmaceutical analytical standards

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

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Dexketoprofen Methyl Ester

ImpurityLevels of characterisation

Cat. No.: P-D072-005
CAS: 81601-91-4
Formula: C₁₇H₁₆O₃
Family: Dexketoprofen
Synonyms: methyl (2S)-2-(3-benzoylphenyl)propanoate, Benzeneacetic acid, 3-benzoyl-alpha-methyl-, methyl ester, (S)-

Dextrorphan

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-D081-004
CAS: 125-73-5
Formula: C₁₇H₂₃NO
Family: Dextrorphan
Synonyms: Dextromethorphan EP Impurity B, Dextro-Dromoran

Dextrorphan D-Tartrate

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-D081-005
CAS: 1021868-94-9
Formula: C₁₇H₂₃NO·C₄H₆O₆
Family: Dextrorphan
Synonyms: Dextromethorphan EP Impurity B D-Tartrate

N-(3,4-Dichlorophenyl)urea

ImpurityLevels of characterisation

Cat. No.: P-L230-005
CAS: 2327-02-8
Formula: C₇H₆Cl₂N₂O
Synonyms: Linuron Impurity 1, Urea, (3,4-dichlorophenyl)-

Didanosine EP Impurity A

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-D100-008
CAS: 68-94-0
Formula: C₅H₄N₄O
Family: Didanosine
Synonyms: Azathioprine EP Impurity F, Hypoxanthine

Didanosine EP Impurity F

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-D100-002
CAS: 42867-68-5
Formula: C₁₀H₁₀N₄O₃
Family: Didanosine
Synonyms: 2',3'-Dideoxy-2',3'-didehydroinosine, 9-[(2R,5S)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]-1H-purin-6-one

Didanosine EP Impurity G

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-D100-003
CAS: 4097-22-7
Formula: C₁₀H₁₃N₅O₂
Family: Didanosine
Synonyms: Dideoxyadenosine, Adenosine, 2',3'-dideoxy-

Diflucortolone

ImpurityLevels of characterisation

Cat. No.: P-D113-005
CAS: 2607-06-9
Formula: C₂₂H₂₈F₂O₄
Family: Diflucortolone
Synonyms: Nerisone fte, Difluocortolone

Diflucortolone 21-Acetate

ImpurityLevels of characterisation

Cat. No.: P-D113-004
CAS: 2541-37-9
Formula: C₂₄H₃₀F₂O₅
Family: Diflucortolone
Synonyms: Flumethasone Impurity 10, Difluocortolone 21-Acetate

Dihydro Avenanthramide D

ImpurityLevels of characterisation

Cat. No.: P-A846-006
CAS: 697235-49-7
Formula: C₁₆H₁₅NO₄
Synonyms: 2-[3-(4-hydroxyphenyl)propanoylamino]benzoic acid, Hydroxyphenyl propamidobenzoic acid

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