Trimethoprim Micronized CAS No 738-70-5

• Function: Antibiotic and Antimicrobial Agents
• Certification: GMP
• Grade Standard: Medicine Grade
• Type: Chemical Reagent
• State: Powder
• Volatile: Not Volatile
• Model NO.: SAMREAL-0243
• Standard: Bp
• Shelf Life: 2 Years
• Transport Package: Drum
• Specification: 25kg/drum
• Trademark: samreal
• Origin: China

Product Description

Trimethoprim Micronized cas no 738-70-5

Characteristics:White or yellowish-white powder.Very slightly soluble in water,slightly soluble in alcohol.

Storage:store in a well-closed container,protected from light.
shelf life:2years
Packing:25kg/fibre drum

Items	Standards	Result
Identification A) B) C) D)	First Identification:C Second Identificaton:A,B,D A)Between199-203ºC B)The specific absorbance at the absorption maximum is 240  to 250. C)Comparison trimethoprim CRS D)Examined in ultraviolet light at 365 nm,shows green fluorescence.	A)200-203ºC B)244 C)comply D)comply
Appearance of solution	The solution is not more intensely coloured than reference solution BY1	Pass
Related substances Single impurity Total impurities	Pass 0.1MAX 0.2MAX	Pass 0.02 0.05
Heavy metals	20ppmMAX	<20PPM
Loss on drying	1.0%MAX	0.4%
Sulphated ash	0.1MAX	0.1%
Assay	98.5%-101.0% C14H18N4O3	99.6%

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