Trimethoprim-impurities | Pharmaffiliates

trimethoprim and its Impurities

Trimethoprim used mainly in the treatment of bladder infections. It is available as a generic medication and is not very expensive. Reference standards of Trimethoprim API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 71 results for trimethoprim Impurities
PA 20 57000

Trimethoprim - API Standards

Trimethoprim


  • Catalogue No.:PA 20 57000

  • CAS :

    738-70-5

  • Molecular Formula : C14H18N4O3

  • Molecular Weight : 290.32

PA 20 57010

Trimethoprim - Impurity A

N2-Methyl-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine


  • Catalogue No.:PA 20 57010

  • CAS :

    213745-86-9

  • Molecular Formula : C15H20N4O3

  • Molecular Weight : 304.34

PA 20 57020

Trimethoprim - Impurity B

(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone


  • Catalogue No.:PA 20 57020

  • CAS :

    30806-86-1

  • Molecular Formula : C14H16N4O4

  • Molecular Weight : 304.30

PA 20 57030

Trimethoprim - Impurity C

(RS)-(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanol


  • Catalogue No.:PA 20 57030

  • CAS :

    29606-06-2

  • Molecular Formula : C14H18N4O4

  • Molecular Weight : 306.32

PA 20 57040

Trimethoprim - Impurity D

2-Amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-4-ol


  • Catalogue No.:PA 20 57040

  • CAS :

    92440-76-1

  • Molecular Formula : C14H17N3O4

  • Molecular Weight : 291.30

PA 20 57050

Trimethoprim - Impurity E

4-Amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-2-ol


  • Catalogue No.:PA 20 57050

  • CAS :

    60729-91-1

  • Molecular Formula : C14H17N3O4

  • Molecular Weight : 291.30

PA 20 57060

Trimethoprim - Impurity F

5-[(3-Bromo-4,5-dimethoxyphenyl)methyl]pyrimidine-2,4-diamine


  • Catalogue No.:PA 20 57060

  • CAS :

    16285-82-8

  • Molecular Formula : C13H15BrN4O2

  • Molecular Weight : 339.19

PA 20 57070

Trimethoprim - Impurity G

5-[(4-Ethoxy-3,5-dimethoxyphenyl)methyl]pyrimidine-2,4-diamine


  • Catalogue No.:PA 20 57070

  • CAS :

    78025-68-0

  • Molecular Formula : C15H20N4O3

  • Molecular Weight : 304.34

PA 20 57080

Trimethoprim - Impurity H

Methyl 3,4,5-Trimethoxybenzoate


  • Catalogue No.:PA 20 57080

  • CAS :

    1916-07-0

  • Molecular Formula : C11H14O5

  • Molecular Weight : 226.23

PA 20 57090

Trimethoprim - Impurity I

(2EZ)-3-Anilino-2-[(3,4,5-trimethoxyphenyl)methyl]prop-2-enenitrile


  • Catalogue No.:PA 20 57090

  • CAS :

    30078-48-9

  • Molecular Formula : C19H20N2O3

  • Molecular Weight : 324.37

PA 20 57100

Trimethoprim - Impurity J

3,4,5-Trimethoxybenzoic Acid


  • Catalogue No.:PA 20 57100

  • CAS :

    118-41-2

  • Molecular Formula : C10H12O5

  • Molecular Weight : 212.20

PA 20 57110

Trimethoprim - Impurity K

Aniline Hydrochloride


  • Catalogue No.:PA 20 57110

  • CAS :

    142-04-1

  • Molecular Formula : C6H5NH2·HCl

  • Molecular Weight : 129.59

PA 20 57111

Trimethoprim - Impurity K (Freebase)

Aniline


  • Catalogue No.:PA 20 57111

  • CAS :

    62-53-3

  • Molecular Formula : C6H7N

  • Molecular Weight : 93.13

PA 20 57510

5-(3,4,5-Trimethoxybenzyl)pyrimidin- 2,4-diol

5-(3,4,5-Trimethoxybenzyl)pyrimidin- 2,4-diol


  • Catalogue No.:PA 20 57510

  • CAS :

    93885-69-9

  • Molecular Formula : C14H16N2O5

  • Molecular Weight : 292.29

PA 20 57520

2-Amino-5-(4-hydroxy-3,5- dimethoxybenzyl)pyrimidin-4-ol

2-Amino-5-(4-hydroxy-3,5- dimethoxybenzyl)pyrimidin-4-ol


  • Catalogue No.:PA 20 57520

  • CAS :

    72920-13-9

  • Molecular Formula : C13H15N3O4

  • Molecular Weight : 277.28

PA 20 57540

1-Oxide Trimethoprim

1-Oxide Trimethoprim


  • Catalogue No.:PA 20 57540

  • CAS :

    27653-68-5

  • Molecular Formula : C14H18N4O4

  • Molecular Weight : 306.32

PA 20 57550

3-Oxide Trimethoprim

3-Oxide Trimethoprim


  • Catalogue No.:PA 20 57550

  • CAS :

    27653-67-4

  • Molecular Formula : C14H18N4O4

  • Molecular Weight : 306.32

PA 20 57560

3-Desmethyl Trimethoprim

3-Desmethyl Trimethoprim


  • Catalogue No.:PA 20 57560

  • CAS :

    27653-69-6

  • Molecular Formula : C13H16N4O3

  • Molecular Weight : 276.29

PA 20 57570

4-Hydroxy Trimethoprim

4-Hydroxy Trimethoprim


  • Catalogue No.:PA 20 57570

  • CAS :

    112678-48-5

  • Molecular Formula : C14H18N4O4

  • Molecular Weight : 306.32

PA 20 57580

5-(3,4,5-Trimethoxybenzyl)pyrimidine

5-(3,4,5-Trimethoxybenzyl)pyrimidine


  • Catalogue No.:PA 20 57580

  • CAS :

    1569582-44-0

  • Molecular Formula : C14H16N2O3

  • Molecular Weight : 260.29

PA 20 57590

Trimethoprim L-Glutamate

Trimethoprim L-Glutamate


  • Catalogue No.:PA 20 57590

  • CAS :

    94232-28-7

  • Molecular Formula : C19H27N5O7

  • Molecular Weight : 437.45

PA STI 064680

N2-Methyl Trimethoprim-D3 (Impurity)

N2-Methyl Trimethoprim-D3 (Impurity)


  • Catalogue No.:PA STI 064680

  • CAS :

    NA

  • Molecular Formula : C15H17D3N4O3

  • Molecular Weight : 307.36

PA STI 014340

Brodimoprim-d6

Brodimoprim-d6


  • Catalogue No.:PA STI 014340

  • CAS :

    1346599-93-6

  • Molecular Formula : C13H9D6BrN4O2

  • Molecular Weight : 345.22

PA STI 027910

4-Desmethoxy-4-bromo Trimethoprim-d3

4-Desmethoxy-4-bromo Trimethoprim-d3


  • Catalogue No.:PA STI 027910

  • CAS :

    1346600-27-8

  • Molecular Formula : C13H12D3BrN4O2

  • Molecular Weight : 342.21

PA STI 028840

4-O-Desmethyl 4-O-Ethyl Trimethoprim-D5

4-O-Desmethyl 4-O-Ethyl Trimethoprim-D5


  • Catalogue No.:PA STI 028840

  • CAS :

    NA

  • Molecular Formula : C15H15D5N4O3

  • Molecular Weight : 309.38

PA STI 051940

4-Hydroxy Trimethoprim-13C3

4-Hydroxy Trimethoprim-13C3


  • Catalogue No.:PA STI 051940

  • CAS :

    1391053-67-0

  • Molecular Formula : C1113C3H18N4O4

  • Molecular Weight : 309.30

PA STI 051950

4-Hydroxy Trimethoprim-d9

4-Hydroxy Trimethoprim-d9


  • Catalogue No.:PA STI 051950

  • CAS :

    1794752-40-1

  • Molecular Formula : C14H9D9N4O4

  • Molecular Weight : 315.37

PA STI 051960

α-Hydroxy Trimethoprim-D3 (Impurity)

α-Hydroxy Trimethoprim-D3 (Impurity)


  • Catalogue No.:PA STI 051960

  • CAS :

    NA

  • Molecular Formula : C14H15D3N4O4

  • Molecular Weight : 309.34

PA STI 080340

Sulfametrole-d4

Sulfametrole-d4


  • Catalogue No.:PA STI 080340

  • CAS :

    NA

  • Molecular Formula : C9H6D4N4O3S2

  • Molecular Weight : 290.36

PA STI 080510

Sulfamonomethoxine-d4

Sulfamonomethoxine-d4


  • Catalogue No.:PA STI 080510

  • CAS :

    1286538-12-2

  • Molecular Formula : C11H8D4N4O3S

  • Molecular Weight : 284.33

PA STI 085070

Trimethoprim-13C3

Trimethoprim-13C3


  • Catalogue No.:PA STI 085070

  • CAS :

    1189970-95-3

  • Molecular Formula : C1113C3H18N4O3

  • Molecular Weight : 293.30

PA STI 085080

Trimethoprim-d9 (Major)

Trimethoprim-d9 (Major)


  • Catalogue No.:PA STI 085080

  • CAS :

    1189460-62-5

  • Molecular Formula : C14H9D9N4O3

  • Molecular Weight : 299.37

PA STI 085090

Trimethoprim-d3

Trimethoprim-d3


  • Catalogue No.:PA STI 085090

  • CAS :

    1189923-38-3

  • Molecular Formula : C14H15D3N4O3

  • Molecular Weight : 293.34

PA STI 085190

α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile-d3

α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile-d3


  • Catalogue No.:PA STI 085190

  • CAS :

    1246833-90-8

  • Molecular Formula : C14H14D3NO4

  • Molecular Weight : 266.31

PA STI 085200

3,4,5-Trimethoxy-d9-2'-cyano-di-hydrocinnamaldehyde Dimethylacetal

3,4,5-Trimethoxy-d9-2'-cyano-di-hydrocinnamaldehyde Dimethylacetal


  • Catalogue No.:PA STI 085200

  • CAS :

    1185144-63-1

  • Molecular Formula : C15H12D9NO5

  • Molecular Weight : 304.39

PAI 20 008010

2,6-Dimethoxyphenol

2,6-Dimethoxyphenol


  • Catalogue No.:PAI 20 008010

  • CAS :

    91-10-1

  • Molecular Formula : C8H10O3

  • Molecular Weight : 154.16

PAI 20 008020

4-((Dimethylamino)methyl)-2,6-dimethoxyphenol

4-((Dimethylamino)methyl)-2,6-dimethoxyphenol


  • Catalogue No.:PAI 20 008020

  • CAS :

    NA

  • Molecular Formula : C11H17NO3

  • Molecular Weight : 211.26

PAI 20 008040

5-Bromouracil

5-Bromouracil


  • Catalogue No.:PAI 20 008040

  • CAS :

    51-20-7

  • Molecular Formula : C4H3BrN2O2

  • Molecular Weight : 190.98

PAI 20 008050

5-Bromo-2,4-dichloropyrimidine

5-Bromo-2,4-dichloropyrimidine


  • Catalogue No.:PAI 20 008050

  • CAS :

    36082-50-5

  • Molecular Formula : C4HBrCl2N2

  • Molecular Weight : 227.87

PAI 20 008060

5-Bromo-2,4-bis(1,1-dimethylethoxy)pyrimidine

5-Bromo-2,4-bis(1,1-dimethylethoxy)pyrimidine


  • Catalogue No.:PAI 20 008060

  • CAS :

    19752-61-5

  • Molecular Formula : C12H19BrN2O2

  • Molecular Weight : 303.20

PAI 20 008070

3,4,5-Trimethoxybenzyl Alcohol

3,4,5-Trimethoxybenzyl Alcohol


  • Catalogue No.:PAI 20 008070

  • CAS :

    3840-31-1

  • Molecular Formula : C10H14O4

  • Molecular Weight : 198.22

PAI 20 008080

Diethyl 3,4,5-trimethoxybenzyl Phosphate

Diethyl 3,4,5-trimethoxybenzyl Phosphate


  • Catalogue No.:PAI 20 008080

  • CAS :

    910859-93-7

  • Molecular Formula : C14H23O7P

  • Molecular Weight : 334.30

PAI 20 008090

2,4-di-tert-Butoxy-5-(3,4,5-trimethoxybenzyl)pyrimidine

2,4-di-tert-Butoxy-5-(3,4,5-trimethoxybenzyl)pyrimidine


  • Catalogue No.:PAI 20 008090

  • CAS :

    NA

  • Molecular Formula : C22H32N2O5

  • Molecular Weight : 404.50

PAI 20 008100

3-(Dimethylamino)propanenitrile

3-(Dimethylamino)propanenitrile


  • Catalogue No.:PAI 20 008100

  • CAS :

    1738-25-6

  • Molecular Formula : C5H10N2

  • Molecular Weight : 98.15

Trimethoprim (ICRS0435)


  • Catalogue No.:PA ICRS0435

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

Trimethoprim (IPRS/34/14)-from IPC


  • Catalogue No.:PA IPIPRS 34 14

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

Trimethoprim (T2200000)

Trimethoprim (T2200000)


  • Catalogue No.:PA EPT2200000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Trimethoprim impurity B (T2200010)

Trimethoprim impurity B (T2200010)


  • Catalogue No.:PA EPT2200010

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Trimethoprim for system suitability (Y0000684)

Trimethoprim for system suitability (Y0000684)


  • Catalogue No.:PA EPY0000684

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Trimethoprim (1692505)


  • Catalogue No.:PA USP1692505

  • CAS :

    738-70-5

  • Molecular Formula :

  • Molecular Weight : NA

Trimethoprim Related Compound A (4-amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol) (1692516)


  • Catalogue No.:PA USP1692516

  • CAS :

    60729-91-1

  • Molecular Formula :

  • Molecular Weight : NA

Trimethoprim Related Compound B (2,4-diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone) (1692527)


  • Catalogue No.:PA USP1692527

  • CAS :

    30806-86-1

  • Molecular Formula :

  • Molecular Weight : NA

trimethoprim (344RB)

trimethoprim (344RB)


  • Catalogue No.:PA BP344RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 20 57600

Trimethoprim lactate - API Standards

Trimethoprim lactate salt


  • Catalogue No.:PA 20 57600

  • CAS :

    23256-42-0

  • Molecular Formula : C17H24N4O6

  • Molecular Weight : 380.4

PA 20 57610

α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile

α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile


  • Catalogue No.:PA 20 57610

  • CAS :

    7520-69-6

  • Molecular Formula : C14H17NO4

  • Molecular Weight : 263.29

PA 20 57620

3,4,5-Trimethoxy-2’-cyano-di-hydrocinnamaldehyde Dimethylacetal

3,4,5-Trimethoxy-2’-cyano-di-hydrocinnamaldehyde Dimethylacetal


  • Catalogue No.:PA 20 57620

  • CAS :

    7520-70-9

  • Molecular Formula : C15H21NO5

  • Molecular Weight : 295.33

PA 20 0571000

Methyl 2,4,6-trimethoxybenzoate

Methyl 2,4,6-trimethoxybenzoate


  • Catalogue No.:PA 20 0571000

  • CAS :

    29723-28-2

  • Molecular Formula : C11H14O5

  • Molecular Weight : 226.23

PA STI 088430

Sulfamonomethoxine-d3 (methoxy-d3)

Sulfamonomethoxine-d3 (methoxy-d3)


  • Catalogue No.:PA STI 088430

  • CAS :

    NA

  • Molecular Formula : C11H9D3N4O3S

  • Molecular Weight : 283.32

PAI 20 008101

4-Ethoxy-3,5-dimethoxybenzaldehyde

4-Ethoxy-3,5-dimethoxybenzaldehyde


  • Catalogue No.:PAI 20 008101

  • CAS :

    39075-25-7

  • Molecular Formula : C11H14O4

  • Molecular Weight : 210.23

PAI 20 008102

(Z)-3-(4-Ethoxy-3,5-dimethoxyphenyl)-2-(ethoxymethyl)acrylonitrile

(Z)-3-(4-Ethoxy-3,5-dimethoxyphenyl)-2-(ethoxymethyl)acrylonitrile


  • Catalogue No.:PAI 20 008102

  • CAS :

    NA

  • Molecular Formula : C16H21NO4

  • Molecular Weight : 291.35

PA 20 0571001

N4-Methyl-5-(3,4,5-trimethoxybenzyl)-pyrimidine-2,4-diamine

N4-Methyl-5-(3,4,5-trimethoxybenzyl)-pyrimidine-2,4-diamine


  • Catalogue No.:PA 20 0571001

  • CAS :

    92653-78-6

  • Molecular Formula : C15H20N4O3

  • Molecular Weight : 304.35

PA 20 0571002

5-Iodo-N2,N4-bis(phenylmethyl)-2,4-pyrimidinediamine

5-Iodo-N2,N4-bis(phenylmethyl)-2,4-pyrimidinediamine


  • Catalogue No.:PA 20 0571002

  • CAS :

    1193570-17-0

  • Molecular Formula : C18H17IN4

  • Molecular Weight : 416.27

PA STI 088943

Baquiloprim-d6

Baquiloprim-d6


  • Catalogue No.:PA STI 088943

  • CAS :

    1228182-50-0

  • Molecular Formula : C17H14D6N6

  • Molecular Weight : 314.43

PA 20 0571003

Trimethoprim Impurity I (E-Isomer)

Trimethoprim Impurity I (E-Isomer)


  • Catalogue No.:PA 20 0571003

  • CAS :

    118791-61-0

  • Molecular Formula : C19H20N2O3

  • Molecular Weight : 324.38

Trimethoprim Impurity B (IMPD031)

Trimethoprim Impurity B (IMPD031)


  • Catalogue No.:PA IMPD031

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Trimethoprim (IPRST045)

Trimethoprim (IPRST045)


  • Catalogue No.:PA IPRST045

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 20 0571004

N-(4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-yl)-N-methylnitrous Amide

N-(4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-yl)-N-methylnitrous Amide


  • Catalogue No.:PA 20 0571004

  • CAS :

    NA

  • Molecular Formula : C15H19N5O4

  • Molecular Weight : 333.35

PAI 20 008103

(E)-2-((Phenylamino)methyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile

(E)-2-((Phenylamino)methyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile


  • Catalogue No.:PAI 20 008103

  • CAS :

    NA

  • Molecular Formula : C19H20N2O3

  • Molecular Weight : 324.38

PAI 20 008104

(Z)-2-(Methoxymethyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile

(Z)-2-(Methoxymethyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile


  • Catalogue No.:PAI 20 008104

  • CAS :

    141292-62-8

  • Molecular Formula : C14H17NO4

  • Molecular Weight : 263.29

PAI 20 008105

(E)-3-(3-Bromo-4,5-dimethoxyphenyl)-2-((phenylamino)methyl)acrylonitrile

(E)-3-(3-Bromo-4,5-dimethoxyphenyl)-2-((phenylamino)methyl)acrylonitrile


  • Catalogue No.:PAI 20 008105

  • CAS :

    NA

  • Molecular Formula : C18H17BrN2O2

  • Molecular Weight : 373.25

PAI 20 008106

(Z)-3-(3-Bromo-4,5-dimethoxyphenyl)-2-(methoxymethyl)acrylonitrile

(Z)-3-(3-Bromo-4,5-dimethoxyphenyl)-2-(methoxymethyl)acrylonitrile


  • Catalogue No.:PAI 20 008106

  • CAS :

    NA

  • Molecular Formula : C13H14BrNO3

  • Molecular Weight : 312.16