Trimethoprim
Synonym: 2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine
CAT No.: AS-2024 
CAS Number: 738-70-5
Molecular Formula: C₁₄H₁₈N₄O₃
Molecular Weight: 290.32 g/mol
Appearance: White to off-white crystalline powder
 
Description:
Trimethoprim, CAS: 738-70-5 is a bacteriostatic antibiotic that acts as a selective inhibitor of bacterial dihydrofolate reductase, thereby blocking folate synthesis and nucleic acid production. It is commonly used in microbiological research, antimicrobial susceptibility testing, and as a selective agent in culture media.
 
Applications:
Research in microbiology and antimicrobial resistance
Preparation of selective media for bacterial culture
Laboratory studies of folate metabolism and inhibition pathways
 
Specifications (Research Grade):
Purity: ≥ 98%
Solubility: Slightly soluble in water; soluble in ethanol, DMSO
Storage: Store in a cool, dry place, protected from light
 
Packaging:
Available in 1 g, 5 g, 10 g, and bulk pack sizes upon request.
 
Storage Temperature: +4°C
 
⚠️ For Research Use Only. Not for human or veterinary use.