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

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Beclomethasone Dipropionate EP Impurity N

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-B016-012
CAS: 1204582-47-7
Formula: C₂₈H₃₆BrClO₇
Family: Beclometasone
Synonyms: 2-Bromo-beclomethasone dipropionate, Beclomethasone dipropionate impurity N

Benzocaine EP Impurity A

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-B043-002
CAS: 623-04-1
Formula: C₇H₉NO
Family: Benzocaine
Synonyms: 4-Aminobenzyl alcohol, p-Aminobenzyl alcohol

Benzocaine EP Impurity C

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-B043-003
CAS: 582-33-2
Formula: C₉H₁₁NO₂
Family: Benzocaine
Synonyms: Ethyl 3-Aminobenzoate, Benzoic acid, 3-amino-, ethyl ester

Benzocaine EP Impurity D

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-B043-005
CAS: 87-25-2
Formula: C₉H₁₁NO₂
Family: Benzocaine
Synonyms: Ethyl 2-Aminobenzoate, Ethyl anthranilate

Benzocaine EP Impurity F

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-B043-006
CAS: 1877-77-6
Formula: C₇H₉NO
Family: Benzocaine
Synonyms: (3-aminophenyl)methanol, 3-Aminobenzyl alcohol

Calcium Folinate EP Impurity I (Mixture of Diastereomers)

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-F109-003
CAS: 3432-99-3
Formula: C₂₀H₂₃N₇O₆
Family: Folinic Acid
Synonyms: Folitixorin, 5,10-Methylene-5,6,7,8-tetrahydrofolic acid

Calcium Folinate EP Impurity I Disodium Salt (Folitixorin Disodium Salt)

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-F109-004
CAS: 133978-76-4
Formula: C₂₀H₂₁N₇Na₂O₆
Family: Folinic Acid
Synonyms: Folitixorin sodium, L-Glutamic acid, N-(4-(3-amino-1,2,5,6,6a,7-hexahydro-1-oxoimidazo(1,5-f)pteridin-8(9H)-yl)benzoyl)-, disodium salt

Calcium Levofolinate EP Impurity E

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-F109-007
CAS: 944737-05-7
Formula: C₁₅H₁₆N₆O₄
Family: Folinic Acid
Synonyms: (6S)-5-Formyltetrahydropteroic Acid

Cefprozil EP Impurity C

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-C096-003
CAS: 147103-93-3
Formula: C₁₁H₁₁N₃O₃
Family: Cefprozil
Synonyms: Cefadroxil EP Impurity E, 3-(Aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione

Cefprozil EP Impurity D

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-C096-004
CAS: 106447-44-3
Formula: C₁₀H₁₂N₂O₃S
Family: Cefprozil
Synonyms: Cefprozil USP Related Compound D, Cefprozil Impurity D

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