• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
Trimethoprim

Trimethoprim

Product ID T7034
Cas No. 738-70-5
Purity ≥98%
Product Unit SizeCostQuantityStock
5 g $82.00 In stock
25 g $255.00 In stock
100 g $715.00 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

Trimethoprim is an antibiotic that inhibits dihydrofolate reductase, acting as an anti-folate. Trimethoprim exhibits antibacterial activity against both gram positive and gram negative bacteria and is clinically used to treat urinary tract infections.

Product Info

Cas No.

738-70-5

Purity

≥98%

Formula

C14H18N4O3

Formula Wt.

290.32

Chemical Name

5-[(3,4,5-Trimethoxyphenyl)methyl]-2,4- pyrimidinediamine

IUPAC Name

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

Synonym

Instalac, Monotrim, Proloprim, Trimopan, Trimpex, Wellcoprim

Melting Point

199-203°C

Solubility

Soluble in DMAC, or benzyl alcohol. Slightly soluble in propylene glycol, chloroform, methanol and water.

Appearance

White or yellowish white powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

T7034 MSDS PDF

Info Sheet

T7034 Info Sheet PDF

References

Singh P, Kaur M, Sachdeva S. Mechanism inspired development of rationally designed dihydrofolate reductase inhibitors as anticancer agents. J Med Chem. 2012 Jul 26;55(14):6381-90. PMID: 22734697.

Sangurdekar DP, Zhang Z, Khodursky AB. The association of DNA damage response and nucleotide level modulation with the antibacterial mechanism of the anti-folate drug trimethoprim. BMC Genomics. 2011 Nov 28;12:583. PMID: 22122981.

Brogden RN, Carmine AA, Heel RC, et al. Trimethoprim: a review of its antibacterial activity, pharmacokinetics and therapeutic use in urinary tract infections. Drugs. 1982 Jun;23(6):405-30. PMID: 7049657.

Ho YB, Zakaria MP, Latif PA, Saari N. Occurrence of veterinary antibiotics and progesterone in broiler manure and agricultural soil in Malaysia. Sci Total Environ. 2014 Aug 1;488-489:261-267. PMID: 24836135.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • N1610

    Necrostatin-1

    RIP1 inhibitor.

    ≥99%
  • P2410

    Phenethyl Dimethyl Caffeate

    Caffeic acid derivative.

    ≥98%
  • B3320

    Bifonazole

    Imidazole; HMG-CoA reductase, 14-α demethylase...

    ≥98%
  • M5752

    Monastrol

    Pyrimidine derivative; kinesin Eg5 inhibitor.

    ≥95%
  • G7862

    GTPL-5846

    GPR84 agonist.

    ≥98%
  • C2960

    Chondroitin Sulfate, cow

    Polyanionic sulfated glycosaminoglycan, encogen...

    ≥90%
  • M400005

    MK-5108 Hydrochloride

    Aurora kinase A inhibitor.

    ≥98%
  • D022705

    Darunavir

    HIV and AIDS

    ≥99%
  • P1969

    Perifosine

    Alkylphospholipid analog; Akt inhibitor.

    ≥98%
  • T1012

    13-TES-Baccatin III

    Synthesis impurity

    ≥98%
  • F8149

    Fumonisin B1

    Mycotoxin produced by Fusarium; sphingosine acy...

    ≥98%
  • N5768

    Norfloxacin

    Fluoroquinolone; topoisomerase IV and bacterial...

    ≥98%
  • C8500

    CV-65

    1,8-Diaza-anthracene-tetrone; JNK and ERK5 inhi...

    ≥70%
  • B7058

    Brompheniramine Maleate

    Pheniramine derivative; histamine H1 and mAChR ...

    ≥98%
  • B6800

    Bradykinin Triacetate

    Natriuretic, vasodilatory peptide; B1/2 agonist...

    ≥95%
  • R2711

    Recombinant HCV-Core Antigens

    Recombinant HIV core protein antigen fragment.<...

    ≥95%
  • A686164

    Arecaidine Hydrochloride

    mAChR agonist, selective for M2.

    ≥98%
  • C3210

    Ciglitazone

    Thiazolidinedione; PPARγ agonist.

    ≥98%
  • D0368

    2-Epi-16-deoxysarcophine

    Cembranoid found in Sarcophyton.

    ≥98%
  • J8800

    JW55

    TNKS1/2 inhibitor.

    ≥98%

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2026 LKT Laboratories, All Rights Reserved - Products for research use only