• 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

  • A0962

    Adrenocorticotropic Hormone (1-4)

    Endogenous peptide hormone fragment, involved i...

    ≥95%
  • R1779

    13-cis-Retinoic Acid

    Vitamin A metabolite, differentiation inducer; ...

    97%
  • E6825

    Ergosterol

    Sterol cell membrane component found in yeast a...

    ≥96%
  • D3428

    Dihydrochelerythrine

    Benzophenanthridine alkaloid found in Garcinia....

    ≥98%
  • I8618

    Ivermectin

    Avermectin; glu-gated Cl- channel activator, Gl...

    ≥95%
  • G733400

    GSK-2578215A

    Selective inhibitor of LRRK2.

    ≥98%
  • E5358

    Enoxacin

    Fluoroquinolone; vacuolar H+ ATPase, topoisomer...

    ≥98%
  • S9755

    (R)-Synephrine

    Synephrine is an endogenous alkaloid.

    ≥98%
  • R3577

    Ritonavir

    HIV protease inhibitor.

    ≥98%
  • T2935

    Thiamphenicol

    Chloramphenicol derivative; protein translation...

    ≥98%
  • R5773

    Rosiglitazone

    Thiazolidinedione; PPARγ agonist.

    ≥99%
  • Z4900

    ZM-447439 Trihydrate

    AurKA/B inhibitor.

    ≥99%
  • A4440

    Allicin

    Organosulfur found in garlic, binds DNA; inward...

    ≥98%
  • A484091

    Amcinonide

    Glucocorticoid

    ≥98%
  • L0250

    Laminin Peptide SIKVAV

    Laminin-derived hexapeptide.

    ≥98%
  • G4434

    Gliotoxin

    Toxin produced by Aspergillus.

    ≥98%
  • C6956

    Crotamiton

    Antipruritic.  
    ≥98%
  • B3209

    Bicalutamide

    AR antagonist.

    ≥98%
  • S176481

    Semaglutide

    GLP-1 agonist

    ≥95%
  • D3449

    Dimethoxycurcumin

    Curcumin derivative.

    ≥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

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