Trimethoprim

更新时间：2026-02-27

价格：面议

CAS号： 38-70-5

药典：美国药典,英国药典,欧洲药典

级别：食品级、药用级、注射级

产品详情

产品名称： Trimethoprim

产品分类：磺胺类

CAS号： 38-70-5

药典：美国药典,英国药典,欧洲药典

级别：食品级、药用级、注射级

产品关键词： Trimethoprim,原料药,磺胺类

主要销售市场：北美洲,中/南美洲,西欧,东欧,大洋洲,亚洲,中东,非洲

是否提供样品：否

产品描述

Hot sell Trimethoprim/TMP/38-70-5
1.Cas No.:38-70-5
2.Color:white
3.Standard:CP/USP
4.Packing:25kg/drum

Hot sell Trimethoprim/TMP/38-70-5
1.Cas No.:38-70-5
2.Color:white
3.Standard:CP/USP
4.Packing:25kg/drum

Trimethoprim/TMP/CAS NO.:38-70-5

1.CAS NO.:38-70-5

2.Color:White powder

3.Standard:CP/USP

4.Packing:25kg/drum

Trimethoprim (INN) is a bacteriostatic antibiotic mainly used in the prophylaxis and treatment of urinary tract infections. It belongs to the class of chemotherapeutic agents known as dihydrofolate reductase inhibitors. Trimethoprim was formerly marketed by GlaxoSmithKline under trade names including Proloprim, Monotrim and Triprim; but these trade names have been licensed to various generic pharmaceutical manufacturers. In clinical use it is often abbreviated TRI or TMP; its common laboratory abbreviation is W.

Items	Standard	Results
Appearance	White or yellowish-white powder		White powder
Solubility	Very slightly soluble in water, slightly soluble in alcohol.		Very slightly soluble in water, slightly soluble in alcohol.
•Identification
A: Melting point	199-203		201.0-201.4
B: Specific absorbance	Max.287nm: 240-250		243
C: IR-spectrum	Complies with reference spectrum		Complies with reference spectrum
D: Chemical reaction	Green fluorescence at 365nm		Green fluorescence at 365nm
Appearance of solution	Not more intensely colored than Reference Solution BY7		Less intensely colored than reference solution BY7
Related substances
Method A by HPLC:
Impurity F	≤0.1%		0.05%
Any single impurity	≤0.1%		<0.1%
Total impurities	≤0.2%		<0.2%
Method B by HPLC:
Any single impurity	≤0.1%		<0.1%
Total impurities	≤0.2%		<0.2%
Heavy metals	≤20ppm		< 20ppm
Residual methanol	≤3000ppm		Not detected
Residual DMSO	≤5000ppm		Not detected
Residual acetic acid	≤5000ppm		Not detected
Impurity K(aniline) by GC	≤5ppm		Not detected
Loss on drying	≤0.5%		0.3%
Sulphated ash	≤0.1%		0.02%
Assay	98.5-101.0%		99.71%
Particle size	100% pass 300 mesh		100% pass 300 mesh