• 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
Sulfamethoxazole

Sulfamethoxazole

Product ID S8248
Cas No. 723-46-6
Purity ≥98%
Product Unit SizeCostQuantityStock
10 g $48.00 In stock
25 g $86.00 In stock
100 g $248.00 In stock
Bulk Quote

Quicklinks

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

Description

Sulfamethoxazole is a sulfonamide antibiotic that competitively inhibits PABA, preventing bacterial production of folic acid and synthesis of DNA. Sulfamethoxazole displays antibacterial activity against Streptococcus, Staphylococcus, Escherichia, Haemophilus, and Pneumocystis.

Product Info

Cas No.

723-46-6

Purity

≥98%

Formula

C10H11N3O3S

Formula Wt.

253.28

Chemical Name

4-Amino-N-(5-methyl-3-isoxazolyl)benzenesulfon- amide

IUPAC Name

4-amino-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide

Synonym

Sulfisomezole, Sulfamethylisoxazole, Sulfamethoxizole, Gantanol, Sinomin

Melting Point

169-172°C

Solubility

Insoluble in water.

Appearance

White to off white powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

S8248 MSDS PDF

Info Sheet

S8248 Info Sheet PDF

References

Jacobs RF, Wilson CB. Intracellular penetration and antimicrobial activity of antibiotics. J Antimicrob Chemother. 1983 Oct;12 Suppl C:13-20. PMID: 6605963.

Gleckman R, Alvarez S, Joubert DW. Drug therapy reviews: trimethoprim-sulfamethoxazole. Am J Hosp Pharm. 1979 Jul;36(7):893-906. PMID: 382841.

Lewis EL, Lacey RW. Present significance of resistance to trimethoprim and sulphonamides in coliforms, Staphylococcus aureus, and Streptococcus faecalis. J Clin Pathol. 1973 Mar;26(3):175-80. PMID: 4633678.

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

  • C5864

    Coptisine Chloride, synthetic

    Isoquinoline alkaloid found in a variety of pla...

    ≥98%
  • L1784

    Levetiracetam

    SV2A synaptic vesicle inhibitor.

    ≥99%
  • P2410

    Phenethyl Dimethyl Caffeate

    Caffeic acid derivative.

    ≥98%
  • L8010

    D-Luciferin Potassium

    Heterocyclic light-emitting compound, natural l...

    ≥98%
  • A044176

    Abemaciclib

    CDK inhibitor.

    ≥98%
  • L960004

    LY-404187

    Selective positive allosteric modulator of AMPA...

    ≥98%
  • E7858

    Etoricoxib

    NSAID; COX-2 inhibitor.

    ≥99%
  • M1749

    Memantine Hydrochloride

    D2 agonist, NMDA, 5-HT3, α7 nAChR antagonist.<...

    ≥97%
  • R3249

    Rimantadine Hydrochloride

    Viral M2 proton channel blocker.

    ≥98%
  • D8014

    DU-14

    Steroid sulfatase inhibitor.

    ≥98%
  • P6818

    Prednisolone

    Cortisol derivative; glucocorticoid agonist.

    ≥98%
  • S7870

    Streptozocin

    Nitrosourea-amino sugar conjugate, DNA cross-li...

    ≥98%
  • G691343

    Griseofulvin

    Fungistatic

    ≥98%
  • A1370

    Adrenomedullin (22-52), human

    Endogenous peptide hormone, involved in cell gr...

    ≥95%
  • C3446

    Cilnidipine

    Dihydropyridine; L-type and N-type Ca2+ channel...

    ≥98%
  • S6130

    Sphingosine-1-Phosphate

    Endogenous sphingolipid involved in cell signal...

    ≥98%
  • L960008

    LY-3177833

    Cdc7 inhibitor.

    ≥99%
  • P2994

    Physalaemin

    Amphibian tachykinin neuropeptide.

    ≥95%
  • L3250

    D-Limonene

    Terpene found in the rind of various citrus fru...

    ≥97%
  • P0146

    Palmitoyl-L-carnitine

    Long chain acylcarnitine involved in fatty acid...

    ≥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