• 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 $81.70 In stock
25 g $255.30 In stock
100 g $714.70 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

  • M5752

    Monastrol

    Pyrimidine derivative; kinesin Eg5 inhibitor.

    ≥95%
  • V014451

    Valiltramiprosate

    beta-Amyloid anti-oligomer and aggregation inhi...

    ≥99%
  • I6068

    Ipriflavone

    Synthetic isoflavone.

    ≥98%
  • C760001

    CT-7001

    CDK7 inhibitor

    ≥99%
  • D4802

    17-Dimethylaminoethylamino Demethoxygeldanamycin

    Geldanamycin derivative; HSP90 inhibitor.

    ≥98%
  • P7158

    Protopine

    Isoquinoline alkaloid found in a variety of pla...

    ≥98%
  • G4799

    Glycitin

    Glycosylated isoflavone found in soy; TAS2R ago...

    ≥98%
  • D5747

    Dolasetron Mesylate Hydrate

    5-HT3 antagonist.

    ≥98%
  • V1668

    Vemurafenib

    B-Raf inhibitor.

    ≥98%
  • E537333

    Enniatin A1

    Mycotoxin contaminant found in cereal grains.

    ≥98%
  • L0349

    Lamotrigine

    R-type Ca2+ and voltage-gated Na+ channel block...

    ≥98%
  • F5873

    Foscarnet Sodium Hydrate

    Metal ion chelator, viral DNA polymerase inhibi...

    ≥98%
  • S8049

    S-Sulforaphene

    Isothiocyanate found in cruciferous vegetables....

    ≥98%
  • T1656

    Tenoxicam Impurity B

    Tenoxicam impurity

    ≥98%
  • V182705

    Verubecestat

    BACE1 inhibitor

    ≥98%
  • R3586

    Rivastigmine Tartrate

    AChE and BChE inhibitor.

    ≥99%
  • A3212

    3′-Azido-3′-deoxythymidine

    Nucleoside (thymidine) analog; DNA chain termin...

    ≥98%
  • O6953

    Ornidazole

    5-Nitroimidazole derivative; genotoxic.

    ≥98%
  • M568262

    Mogrol

    Triterpenoid

    ≥99%
  • I5215

    Indolicidin

    Antimicrobial peptide.

    ≥95%

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

©2025 LKT Laboratories, All Rights Reserved - Products for research use only