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.
Trimethoprim
Catalogue No.:PA 20 57000
CAS :
Molecular Formula : C14H18N4O3
Molecular Weight : 290.32
N2-Methyl-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Catalogue No.:PA 20 57010
Molecular Formula : C15H20N4O3
Molecular Weight : 304.34
(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone
Catalogue No.:PA 20 57020
Molecular Formula : C14H16N4O4
Molecular Weight : 304.30
(RS)-(2,4-Diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanol
Catalogue No.:PA 20 57030
Molecular Formula : C14H18N4O4
Molecular Weight : 306.32
2-Amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-4-ol
Catalogue No.:PA 20 57040
Molecular Formula : C14H17N3O4
Molecular Weight : 291.30
4-Amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-2-ol
Catalogue No.:PA 20 57050
5-[(3-Bromo-4,5-dimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Catalogue No.:PA 20 57060
Molecular Formula : C13H15BrN4O2
Molecular Weight : 339.19
5-[(4-Ethoxy-3,5-dimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Catalogue No.:PA 20 57070
Methyl 3,4,5-Trimethoxybenzoate
Catalogue No.:PA 20 57080
Molecular Formula : C11H14O5
Molecular Weight : 226.23
(2EZ)-3-Anilino-2-[(3,4,5-trimethoxyphenyl)methyl]prop-2-enenitrile
Catalogue No.:PA 20 57090
Molecular Formula : C19H20N2O3
Molecular Weight : 324.37
3,4,5-Trimethoxybenzoic Acid
Catalogue No.:PA 20 57100
Molecular Formula : C10H12O5
Molecular Weight : 212.20
Aniline
Catalogue No.:PA 20 57111
Molecular Formula : C6H7N
Molecular Weight : 93.13
5-(3,4,5-Trimethoxybenzyl)pyrimidin- 2,4-diol
Catalogue No.:PA 20 57510
Molecular Formula : C14H16N2O5
Molecular Weight : 292.29
2-Amino-5-(4-hydroxy-3,5- dimethoxybenzyl)pyrimidin-4-ol
Catalogue No.:PA 20 57520
Molecular Formula : C13H15N3O4
Molecular Weight : 277.28
1-Oxide Trimethoprim
Catalogue No.:PA 20 57540
3-Oxide Trimethoprim
Catalogue No.:PA 20 57550
Methyl 2,4,6-trimethoxybenzoate
Catalogue No.:PA 20 0571000
3-Desmethyl Trimethoprim
Catalogue No.:PA 20 57560
Molecular Formula : C13H16N4O3
Molecular Weight : 276.29
4-Hydroxy Trimethoprim
Catalogue No.:PA 20 57570
5-(3,4,5-Trimethoxybenzyl)pyrimidine
Catalogue No.:PA 20 57580
Molecular Formula : C14H16N2O3
Molecular Weight : 260.29
Trimethoprim L-Glutamate
Catalogue No.:PA 20 57590
Molecular Formula : C19H27N5O7
Molecular Weight : 437.45
N2-Methyl Trimethoprim-D3 (Impurity)
Catalogue No.:PA STI 064680
Molecular Formula : C15H17D3N4O3
Molecular Weight : 307.36
Brodimoprim-d6
Catalogue No.:PA STI 014340
Molecular Formula : C13H9D6BrN4O2
Molecular Weight : 345.22
4-Desmethoxy-4-bromo Trimethoprim-d3
Catalogue No.:PA STI 027910
Molecular Formula : C13H12D3BrN4O2
Molecular Weight : 342.21
4-O-Desmethyl 4-O-Ethyl Trimethoprim-D5
Catalogue No.:PA STI 028840
Molecular Formula : C15H15D5N4O3
Molecular Weight : 309.38
4-Hydroxy Trimethoprim-13C3
Catalogue No.:PA STI 051940
Molecular Formula : C1113C3H18N4O4
Molecular Weight : 309.30
4-Hydroxy Trimethoprim-d9
Catalogue No.:PA STI 051950
Molecular Formula : C14H9D9N4O4
Molecular Weight : 315.37
α-Hydroxy Trimethoprim-D3 (Impurity)
Catalogue No.:PA STI 051960
Molecular Formula : C14H15D3N4O4
Molecular Weight : 309.34
Sulfametrole-d4
Catalogue No.:PA STI 080340
Molecular Formula : C9H6D4N4O3S2
Molecular Weight : 290.36
Sulfamonomethoxine-d4
Catalogue No.:PA STI 080510
Molecular Formula : C11H8D4N4O3S
Molecular Weight : 284.33
Trimethoprim-13C3
Catalogue No.:PA STI 085070
Molecular Formula : C1113C3H18N4O3
Molecular Weight : 293.30
Trimethoprim-d9 (Major)
Catalogue No.:PA STI 085080
Molecular Formula : C14H9D9N4O3
Molecular Weight : 299.37
Trimethoprim-d3
Catalogue No.:PA STI 085090
Molecular Formula : C14H15D3N4O3
Molecular Weight : 293.34
α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile-d3
Catalogue No.:PA STI 085190
Molecular Formula : C14H14D3NO4
Molecular Weight : 266.31
3,4,5-Trimethoxy-d9-2'-cyano-di-hydrocinnamaldehyde Dimethylacetal
Catalogue No.:PA STI 085200
Molecular Formula : C15H12D9NO5
Molecular Weight : 304.39
2,6-Dimethoxyphenol
Catalogue No.:PAI 20 008010
Molecular Formula : C8H10O3
Molecular Weight : 154.16
4-((Dimethylamino)methyl)-2,6-dimethoxyphenol
Catalogue No.:PAI 20 008020
Molecular Formula : C11H17NO3
Molecular Weight : 211.26
5-Bromouracil
Catalogue No.:PAI 20 008040
Molecular Formula : C4H3BrN2O2
Molecular Weight : 190.98
5-Bromo-2,4-dichloropyrimidine
Catalogue No.:PAI 20 008050
Molecular Formula : C4HBrCl2N2
Molecular Weight : 227.87
5-Bromo-2,4-bis(1,1-dimethylethoxy)pyrimidine
Catalogue No.:PAI 20 008060
Molecular Formula : C12H19BrN2O2
Molecular Weight : 303.20
3,4,5-Trimethoxybenzyl Alcohol
Catalogue No.:PAI 20 008070
Molecular Formula : C10H14O4
Molecular Weight : 198.22
Diethyl 3,4,5-trimethoxybenzyl Phosphate
Catalogue No.:PAI 20 008080
Molecular Formula : C14H23O7P
Molecular Weight : 334.30
2,4-di-tert-Butoxy-5-(3,4,5-trimethoxybenzyl)pyrimidine
Catalogue No.:PAI 20 008090
Molecular Formula : C22H32N2O5
Molecular Weight : 404.5
3-(Dimethylamino)propanenitrile
Catalogue No.:PAI 20 008100
Molecular Formula : C5H10N2
Molecular Weight : 98.15
Catalogue No.:PA ICRS0435
Molecular Formula :
Molecular Weight : NA
Catalogue No.:PA IPIPRS 34 14
Trimethoprim (T2200000)
Catalogue No.:PA EPT2200000
Molecular Formula : NA
Trimethoprim impurity B (T2200010)
Catalogue No.:PA EPT2200010
Trimethoprim for system suitability (Y0000684)
Catalogue No.:PA EPY0000684
Catalogue No.:PA USP1692505
Catalogue No.:PA USP1692516
Catalogue No.:PA USP1692527
trimethoprim (344RB)
Catalogue No.:PA BP344RB
Trimethoprim lactate salt
Catalogue No.:PA 20 57600
Molecular Formula : C17H24N4O6
Molecular Weight : 380.4
α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile
Catalogue No.:PA 20 57610
Molecular Formula : C14H17NO4
Molecular Weight : 263.29
3,4,5-Trimethoxy-2’-cyano-di-hydrocinnamaldehyde Dimethylacetal
Catalogue No.:PA 20 57620
Molecular Formula : C15H21NO5
Molecular Weight : 295.33
Sulfamonomethoxine-d3 (methoxy-d3)
Catalogue No.:PA STI 088430
Molecular Formula : C11H9D3N4O3S
Molecular Weight : 283.32
4-Ethoxy-3,5-dimethoxybenzaldehyde
Catalogue No.:PAI 20 008101
Molecular Formula : C11H14O4
Molecular Weight : 210.23
(Z)-3-(4-Ethoxy-3,5-dimethoxyphenyl)-2-(ethoxymethyl)acrylonitrile
Catalogue No.:PAI 20 008102
Molecular Formula : C16H21NO4
Molecular Weight : 291.35
N4-Methyl-5-(3,4,5-trimethoxybenzyl)-pyrimidine-2,4-diamine
Catalogue No.:PA 20 0571001
Molecular Weight : 304.35
5-Iodo-N2,N4-bis(phenylmethyl)-2,4-pyrimidinediamine
Catalogue No.:PA 20 0571002
Molecular Formula : C18H17IN4
Molecular Weight : 416.27
Baquiloprim-d6
Catalogue No.:PA STI 088943
Molecular Formula : C17H14D6N6
Molecular Weight : 314.43
Trimethoprim Impurity I (E-Isomer)
Catalogue No.:PA 20 0571003
Molecular Weight : 324.38
Trimethoprim Impurity B (IMPD031)
Catalogue No.:PA IMPD031
Trimethoprim (IPRST045)
Catalogue No.:PA IPRST045
N-(4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-yl)-N-methylnitrous Amide
Catalogue No.:PA 20 0571004
Molecular Formula : C15H19N5O4
Molecular Weight : 333.35
(E)-2-((Phenylamino)methyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile
Catalogue No.:PAI 20 008103
(Z)-2-(Methoxymethyl)-3-(3,4,5-trimethoxyphenyl)acrylonitrile
Catalogue No.:PAI 20 008104
(E)-3-(3-Bromo-4,5-dimethoxyphenyl)-2-((phenylamino)methyl)acrylonitrile
Catalogue No.:PAI 20 008105
Molecular Formula : C18H17BrN2O2
Molecular Weight : 373.25
(Z)-3-(3-Bromo-4,5-dimethoxyphenyl)-2-(methoxymethyl)acrylonitrile
Catalogue No.:PAI 20 008106
Molecular Formula : C13H14BrNO3
Molecular Weight : 312.16
3-(Dimethylamino)-2-(3,4,5-trimethoxybenzyl)acrylonitrile
Catalogue No.:PA 20 0571005
Molecular Formula : C15H20N2O3
Molecular Weight : 276.34
Trimethoprim (RMS)
Catalogue No.:PA RMS 05720009
Catalogue No.:PA BND 05720004
Catalogue No.:PA BSC 05720778
Catalogue No.:PA BSC 05720833
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