trimethoprim
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.
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Trimethoprim - Impurity A
Catalogue No.:PA 20 57010
Molecular Formula : C15H20N4O3
Molecular Weight : 304.34
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Trimethoprim - Impurity D
Catalogue No.:PA 20 57040
Molecular Formula : C14H17N3O4
Molecular Weight : 291.30
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Trimethoprim - Impurity G
Catalogue No.:PA 20 57070
Molecular Formula : C15H20N4O3
Molecular Weight : 304.34
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Trimethoprim - Impurity J
Catalogue No.:PA 20 57100
Molecular Formula : C10H12O5
Molecular Weight : 212.20
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5-(3,4,5-Trimethoxybenzyl)pyrimidin- 2,4-diol
Catalogue No.:PA 20 57510
Molecular Formula : C14H16N2O5
Molecular Weight : 292.29
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Trimethoprim - Impurity C
Catalogue No.:PA 20 57030
Molecular Formula : C14H18N4O4
Molecular Weight : 306.32
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Trimethoprim - Impurity E
Catalogue No.:PA 20 57050
Molecular Formula : C14H17N3O4
Molecular Weight : 291.30
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Catalogue No.:PA 20 57560
Molecular Formula : C13H16N4O3
Molecular Weight : 276.29
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N2-Methyl Trimethoprim-D3 (Impurity)
Catalogue No.:PA STI 064680
Molecular Formula : C15H17D3N4O3
Molecular Weight : 307.36
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4-O-Desmethyl 4-O-Ethyl Trimethoprim-D5
Catalogue No.:PA STI 028840
Molecular Formula : C15H15D5N4O3
Molecular Weight : 309.38
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α-Hydroxy Trimethoprim-D3 (Impurity)
Catalogue No.:PA STI 051960
Molecular Formula : C14H15D3N4O4
Molecular Weight : 309.34
stdClass Object
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[weight] => 210.23
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4-Ethoxy-3,5-dimethoxybenzaldehyde
Catalogue No.:PAI 20 008101
Molecular Formula : C11H14O4
Molecular Weight : 210.23
stdClass Object
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N4-Methyl-5-(3,4,5-trimethoxybenzyl)-pyrimidine-2,4-diamine
Catalogue No.:PA 20 0571001
Molecular Formula : C15H20N4O3
Molecular Weight : 304.35
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5-Iodo-N2,N4-bis(phenylmethyl)-2,4-pyrimidinediamine
Catalogue No.:PA 20 0571002
Molecular Formula : C18H17IN4
Molecular Weight : 416.27
stdClass Object
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[pname] => Baquiloprim-d6
[catalogue_number] => PA STI 088943
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[chemical_name] =>
[weight] => 314.43
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Catalogue No.:PA STI 088943
Molecular Formula : C17H14D6N6
Molecular Weight : 314.43
stdClass Object
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[pname] => Trimethoprim Impurity I (E-Isomer)
[catalogue_number] => PA 20 0571003
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[chemical_name] =>
[weight] => 324.38
[form] => C19H20N2O3
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Trimethoprim Impurity I (E-Isomer)
Catalogue No.:PA 20 0571003
Molecular Formula : C19H20N2O3
Molecular Weight : 324.38
stdClass Object
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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