Trimethoprim 是抑菌抗生素，也是具有口服活性的二氢叶酸还原酶抑制剂。它对多种革兰氏阳性和革兰氏阴性需氧细菌具有活性，可用于尿路感染，肺孢子菌肺炎和志贺氏菌病的研究。

Trimethoprim is a Dihydrofolate Reductase Inhibitor Antibacterial. The mechanism of action of trimethoprim is as a Dihydrofolate Reductase Inhibitor, and Cytochrome P450 2C8 Inhibitor, and Organic Cation Transporter 2 Inhibitor.

Trimethoprim通过干扰细菌二氢叶酸还原酶的作用,抑制四氢叶酸的合成。抑制作用使得细菌DNA复制所必需的核苷酸缺乏,在某些情况下导致胸腺嘧啶死亡引起的细胞死亡。

738-70-5

C14H18N4O3

290.323

NIH 204;NSC-106568;BW 56-72;甲氧苄啶

DMSO:54 mg/mL (186 mM)
Ethanol:<1 mgml
Powder: -20°C for 3 years
In solvent: -80°C for 2 years