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Sulfamethoxazole

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.

References PubMed ID::http://www.ncbi.nlm.nih.gov/pubmed/18974135

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

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.

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