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1692505

USP

Trimethoprim

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine, NSC 106568

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About This Item

Empirical Formula (Hill Notation):
C14H18N4O3
CAS Number:
738-70-5
Molecular Weight:
290.32
Beilstein/REAXYS Number:
625127
MDL number:
MFCD00036761
UNSPSC Code:
41116107
PubChem Substance ID:
329751414
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

trimethoprim

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OC

InChI

1S/C14H18N4O3/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)

InChI key

IEDVJHCEMCRBQM-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Trimethoprim USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.
Also, for use with USP monographs such as:
  • Trimethoprim Tablets
  • Trimethoprim Sulfate
  • Sulfamethoxazole and Trimethoprim Tablets
  • Sulfamethoxazole and Trimethoprim Injection
  • Sulfamethoxazole and Trimethoprim Oral Suspension
  • Polymyxin B Sulfate and Trimethoprim Ophthalmic Solution

Primarily used as an antibacterial agent. Dihydrofolate reductase inhibitor with selectivity for the prokaryote enzyme.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Repr. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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O Sköld
Veterinary research, 32(3-4), 261-273 (2001-07-04)
Sulfonamides and trimethoprim have been used for many decades as efficient and inexpensive antibacterial agents for animals and man. Resistance to both has, however, spread extensively and rapidly. This is mainly due to the horizontal spread of resistance genes, expressing
Christine Manyando et al.
PloS one, 9(5), e96017-e96017 (2014-05-17)
Antibiotic therapy during pregnancy may be beneficial and impacts positively on the reduction of adverse pregnancy outcomes. No studies have been done so far on the effects of daily Co-trimoxazole (CTX) prophylaxis on birth outcomes. A phase 3b randomized trial
Dolores Camacho-Muñoz et al.
Chemosphere, 111, 70-79 (2014-07-07)
The distribution of pharmaceutically active compounds in the environment has been reported in several works in which wastewater treatment plants have been identified as the main source of these compounds to the environment. The concentrations of these compounds in influent
Luis H Braga et al.
The Journal of urology, 191(5 Suppl), 1501-1507 (2014-04-01)
We determined the feasibility of a clinical trial of continuous antibiotic prophylaxis to prevent urinary tract infections in children with prenatal hydronephrosis. We piloted a blinded, randomized, placebo controlled study of the urinary tract infection rate in infants with grades
Adverse reactions to sulphonamide and sulphonamide-trimethoprim antimicrobials: clinical syndromes and pathogenesis.
A E Cribb et al.
Adverse drug reactions and toxicological reviews, 15(1), 9-50 (1996-03-01)
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