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

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Trimethoprim EP Impurity G

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-T217-008
CAS: 78025-68-0
Formula: C₁₅H₂₀N₄O₃
Family: Trimethoprim
Synonyms: 5-(4-Ethoxy-3,5-dimethoxybenzyl)pyrimidine-2,4-diamine, 5-[(4-ethoxy-3,5-dimethoxyphenyl)methyl]pyrimidine-2,4-diamine

Trimethoprim EP Impurity H

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-T217-025
CAS: 1916-07-0
Formula: C₁₁H₁₄O₅
Family: Trimethoprim
Synonyms: Trimebutine EP Impurity C, Methyl 3,4,5-trimethoxybenzoate

Trimethoprim EP Impurity I (E-Isomer)

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-T217-010
CAS: 30078-48-9
Formula: C₁₉H₂₀N₂O₃
Family: Trimethoprim
Synonyms: Benzenepropanenitrile, 3,4,5-trimethoxy-alpha-((phenylamino)methylene)-, Trimethoprim impurity i (z) (ep impurity)

Trimethoprim EP Impurity J

Pharmacopoeial impurityLevels of characterisation

Cat. No.: P-T217-026
CAS: 118-41-2
Formula: C₁₀H₁₂O₅
Family: Trimethoprim
Synonyms: Trimebutine EP Impurity B, 3,4,5-Trimethoxybenzoic Acid

Trimethoprim EP Impurity J-d9

Isotopically labelledLevels of characterisation

Cat. No.: P-T217-011
CAS: 84759-05-7
Formula: C₁₀H₃D₉O₅
Family: Trimethoprim
Synonyms: Trimebutine EP Impurity B-d9, 3,4,5-Trimethoxybenzoic Acid-d9

Trimethoprim Impurity 1

ImpurityLevels of characterisation

Cat. No.: P-T217-013
CAS: 72920-13-9
Formula: C₁₃H₁₅N₃O₄
Family: Trimethoprim
Synonyms: 2-Amino-5-(4-hydroxy-3,5-dimethoxybenzyl)pyrimidin-4-ol, 2-Amino-5-(4-hydroxy-3,5-dimethoxybenzyl)pyrimidin-4(3H)-one

Trimethoprim Impurity 2

ImpurityLevels of characterisation

Cat. No.: P-T217-015
CAS: 71639-97-9
Formula: C₁₈H₂₀O₇
Family: Trimethoprim
Synonyms: 3,5-Dimethoxyphenyl 2,4,6-trimethoxybenzoate

Trimethoprim Impurity 3

ImpurityLevels of characterisation

Cat. No.: P-T217-017
CAS: 93885-69-9
Formula: C₁₄H₁₆N₂O₅
Family: Trimethoprim
Synonyms: 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diol, 5-(3,4,5-Trimethoxybenzyl)pyrimidin-2,4-diol

Trimethoprim Impurity 4

ImpurityLevels of characterisation

Cat. No.: P-T217-018
CAS: 30077-85-1
Formula: C₁₅H₂₀N₂O₃
Family: Trimethoprim
Synonyms: 3-(dimethylamino)-2-[(3,4,5-trimethoxyphenyl)methyl]prop-2-enenitrile

Trimethoprim N1-Oxide

ImpurityLevels of characterisation

Cat. No.: P-T217-023
CAS: 27653-68-5
Formula: C₁₄H₁₈N₄O₄
Family: Trimethoprim
Synonyms: 1-Hydroxy-2-imino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-4-amine, Trimethoprim N-oxide

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