Trimethoprim

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Trimethoprim API Reference standards and its EP Impurities, USP Impurities, non pharmacopeial Impurities, listed below & also offered custom synthesis for unknown Impurities. If require any contact info@drjcrbio.com, sales@drjcrbio.com

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    Product Name : Trimethoprim ;5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine | 738-70-5

    Code: JCTMT-12
    CAS:  738-70-5
    Chemical Formula:  C14H18N4O3
    Molecular Weight: 290.32
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Trimethoprim ;5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine | 738-70-5 is useful as reference Impurity standard.
    Trimethoprim ;5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine  |  738-70-5
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    Product Name : Trimethoprim EP Impurity A ;N2-Methyl Trimethoprim ; 4-Amino-2-methylamino-5-(3,4,5-trimethoxybenzyl)pyrimidine | 213745-86-9

    Code: JCTMT-11
    CAS:  213745-86-9
    Chemical Formula:  C15H20N4O3
    Molecular Weight: 304.34
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Trimethoprim EP Impurity A ;N2-Methyl Trimethoprim ; 4-Amino-2-methylamino-5-(3,4,5-trimethoxybenzyl)pyrimidine | 213745-86-9 is useful as reference Impurity standard
    Trimethoprim EP Impurity A ;N2-Methyl Trimethoprim ; 4-Amino-2-methylamino-5-(3,4,5-trimethoxybenzyl)pyrimidine | 213745-86-9
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    Product Name : Trimethoprim EP Impurity B ;Trimethoprim USP RC B ; (2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone | 30806-86-1

    Code:  JCTMT-10
    CAS:  30806-86-1
    Chemical Formula:  C14H16N4O4
    Molecular Weight: 304.3
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Trimethoprim EP Impurity B ;Trimethoprim USP RC B ; (2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone | 30806-86-1is useful as reference Impurity standard.
    Trimethoprim EP Impurity B ;Trimethoprim USP RC B ; (2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone  |  30806-86-1
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    Product Name : Trimethoprim EP Impurity C ; α-Hydroxy Trimethoprim HCl ; (RS)-(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanol HCl | 29606-06-02

    Code:  JCTMT-09
    CAS:  29606-06-02
    Chemical Formula:  C14H19ClN4O4
    Molecular Weight: 342.78
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Trimethoprim EP Impurity C ; α-Hydroxy Trimethoprim HCl ; (RS)-(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanol HCl | 29606-06-02 is useful as reference Impurity standard.
    Trimethoprim EP Impurity C ; α-Hydroxy Trimethoprim HCl ; (RS)-(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanol HCl  |  29606-06-02
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    Product Name : Trimethoprim EP Impurity D ; 2-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-4-ol | 92440-76-1

    Code: JCTMT-08
    CAS:  92440-76-1
    Chemical Formula:  C14H17N3O4
    Molecular Weight: 291.3
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Trimethoprim EP Impurity D ; 2-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-4-ol | 92440-76-1 is useful as reference Impurity standard.
    Trimethoprim EP Impurity D ; 2-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-4-ol  |  92440-76-1
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    Product Name : Trimethoprim EP Impurity E ; Trimethoprim USP RC A ; 4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol | 60729-91-1

    Code: JCTMT-07
    CAS:  60729-91-1
    Chemical Formula: C14H17N3O4
    Molecular Weight: 291.3
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Trimethoprim EP Impurity E ; Trimethoprim USP RC A ; 4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol | 60729-91-1 is useful as reference Impurity standard.
    Trimethoprim EP Impurity E ; Trimethoprim USP RC A ;  4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol  |  60729-91-1
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    Product Name : Trimethoprim EP Impurity F ;3-Desmethoxy 3-Bromo Trimethoprim ; 5-(3-Bromo-4,5-dimethoxybenzyl)pyrimidine-2,4-diamine | 16285-82-8

    Code:  JCTMT-06
    CAS: 16285-82-8
    Chemical Formula: C13H15BrN4O2
    Molecular Weight: 339.19
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Trimethoprim EP Impurity F ;3-Desmethoxy 3-Bromo Trimethoprim ; 5-(3-Bromo-4,5-dimethoxybenzyl)pyrimidine-2,4-diamine | 16285-82-8is useful as reference Impurity standard.
    Trimethoprim EP Impurity F ;3-Desmethoxy 3-Bromo Trimethoprim ;  5-(3-Bromo-4,5-dimethoxybenzyl)pyrimidine-2,4-diamine  |  16285-82-8
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    Product Name : Trimethoprim EP Impurity G ;4-O-Desmethyl 4-O-Ethyl Trimethoprim ; 5-(4-Ethoxy-3,5-dimethoxybenzyl)pyrimidine-2,4-diamine | 78025-68-0

    Code: JCTMT-05
    CAS: 78025-68-0
    Chemical Formula:  C15H20N4O3
    Molecular Weight: 304.34
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Trimethoprim EP Impurity G ;4-O-Desmethyl 4-O-Ethyl Trimethoprim ; 5-(4-Ethoxy-3,5-dimethoxybenzyl)pyrimidine-2,4-diamine | 78025-68-0is useful as reference Impurity standard.
    Trimethoprim EP Impurity G ;4-O-Desmethyl 4-O-Ethyl Trimethoprim ;  5-(4-Ethoxy-3,5-dimethoxybenzyl)pyrimidine-2,4-diamine |  78025-68-0
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    Product Name : Trimethoprim EP Impurity H ; 3,4,5-Trimethoxybenzoic acid methyl ester | 1916-07-0

    Code: JCTMT-04
    CAS: 1916-07-0
    Chemical Formula:C11H14O5
    Molecular Weight: 226.23
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:Trimethoprim EP Impurity H ; 3,4,5-Trimethoxybenzoic acid methyl ester | 1916-07-0 is useful as reference Impurity standard.
    Trimethoprim EP Impurity H ;  3,4,5-Trimethoxybenzoic acid methyl ester  |  1916-07-0
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    Product Name : Trimethoprim EP Impurity I ;3-Anilino-2-(3,4,5-trimethoxybenzyl)acrylonitrile | 30078-48-9

    Code:  JCTMT-03
    CAS:  30078-48-9
    Chemical Formula:  C19H20N2O3
    Molecular Weight: 324.37
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Trimethoprim EP Impurity I ;3-Anilino-2-(3,4,5-trimethoxybenzyl)acrylonitrile | 30078-48-9is useful as reference Impurity standard.
    Trimethoprim EP Impurity I ;3-Anilino-2-(3,4,5-trimethoxybenzyl)acrylonitrile  |  30078-48-9
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    Product Name : Trimethoprim EP Impurity J ;Eudesmic Acid ; 3,4,5-Trimethoxybenzoic acid | 118-41-2

    Code:  JCTMT-02
    CAS:  118-41-2
    Chemical Formula: C10H12O5
    Molecular Weight: 212.20
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Trimethoprim EP Impurity J ;Eudesmic Acid ; 3,4,5-Trimethoxybenzoic acid | 118-41-2is useful as reference Impurity standard.
    Trimethoprim EP Impurity J ;Eudesmic Acid ; 3,4,5-Trimethoxybenzoic acid  |  118-41-2
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    Product Name : Trimethoprim EP Impurity K ; Aniline ; Aminobenzene | 62-53-3

    Code:  JCTMT-01
    CAS: 62-53-3
    Chemical Formula:  C6H7N
    Molecular Weight:93.13
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Trimethoprim EP Impurity K ; Aniline ; Aminobenzene | 62-53-3is useful as reference Impurity standard.
    Trimethoprim EP Impurity K ; Aniline ; Aminobenzene |  62-53-3