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Trimethoprim

Catalog No. T7883 Name Sigma Aldrich
CAS Number 738-70-5 Website http://www.sigmaaldrich.com
M. F. C14H18N4O3 Telephone 1-800-521-8956
M. W. 290.31772 Fax
Purity ≥98% (TLC) Email
Storage Chembase ID: 323

SYNONYMS

Title
甲氧苄啶
IUPAC name
5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
IUPAC Traditional name
trimethoprim
Synonyms
2,4-二氨基-5-(3,4,5-三甲氧基苄基)嘧啶

DATABASE IDS

MDL Number MFCD00036761
Beilstein Number 625127
PubChem SID 24278201
EC Number 212-006-2
CAS Number 738-70-5

PROPERTIES

Purity ≥98% (TLC)
Gene Information human ... DHFRP1(573971), KCNH1(3756)rat ... Dhfr(24312)
Apperance white powder
Solubility DMSO: soluble
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
RTECS UV8225000
Storage Temperature 2-8°C
German water hazard class 3

DETAILS

Description (English)
Application
Primarily used as an antibacterial agent. Dihydrofolate reductase inhibitor with selectivity for the prokaryote enzyme.
Trimethoprim is primarily used as an antibacterial agent. It has dihydrofolate reductase inhibitor activity with selectivity for the prokaryote enzyme. It is used to treat urinary tract infections, mild acute prostatitis, recurrent cystitis, asymptomatic bacteriuria during pregnancy and respiratory tract infections1.
Other Notes
Specific inhibitor of formulation. Widely used in studies on dihydrofolate reductase2,3.
Biochem/physiol Actions
The combination of trimethoprim and sulfamethoxazole interferes with the cellular metabolism of folic acid in the bacterial cell by blocking the biosynthesis of nucleotides. Trimethoprim binds to dihydrofolate reductase and inhibits the reduction of dihydrofolic acid (DHF) to tetrahydrofolic acid (THF). THF is an essential precursor in the thymidine synthesis pathway and interference with this pathway inhibits bacterial DNA synthesis1.
Protocols & Applications
Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information

REFERENCES