Trimethoprim TMP API BP CAS 738-70-5

Basic Info

Model No.: X-CAS 738-70-5

CAS No.:: 738-70-5

MF:: C14H18N4O3

MW:: 290.31800

Density:: 1.252 G/cm3

MP:: 199-203 °C

Bp:: 526ºC At 760 MmHg

FP:: 526ºC At 760 MmHg

Additional Info

Packaging: 25kg/drum or as your request

Productivity: 100000kg per month


Transportation: Ocean,Land,Air

Place of Origin: Shandong, China (Mainland)

Supply Ability: in stock

Certificate: ISO CE

HS Code: 738-70-5

Port: Shanghai,Tianjin,Qingdao

Product Description

Description of Nootropics API CAS 51352-87-5    

Trimethoprim antibacterial principle is to interfere with bacterial folic acid metabolism. The main mechanism of action is the selective inhibition of bacterial dihydrofolate reductase activity, so that dihydrofolate can not be reduced to tetrahydrofolate, and synthetic folic acid is the main component of nucleic acid biosynthesis, it prevents the bacterial nucleic acid and protein And the binding of mecclidine (TMP) to the bacterial dihydrofolate reductase is 5 to 60,000 fold more tightly bound to the mammalian enzyme.

What Features of CAS 51352-87-5 ?






White powder




Very slightly soluble in water, slightly soluble in alcohol.

Very slightly soluble in water,

slightly soluble in alcohol.

A: Melting point



B:Specific absorbance

Max.287nm: 240-250


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



Any single impurity


less than 0.1%

Total impurities


less than 0.2%

Related substances   Method B by HPLC:

Any single impurity

not more than 0.1%

less than 0.1%

Total impurities

not more than 0.2%

less than 0.2%

Heavy metals

not more than 20PPM

less than 20ppm


not more than 3000PPM


Residual DMSO

not more than 5000PPM


Residual acetic acid

not more than 5000PPM


Impurity K(aniline) by GC

not more than 5PPM



not more than 1.0%



not more than 0.1%





Packing ahd shipping 

25kg/drum or as your request.

Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.

For mass orders, it will be delivered by air or sea.

Depending on your location, please allow 1-5 business days for your order to arrive.

For small order, please expect 3-7 days by UPS DHL EMS

For mass order, please allow 5-8 days by Air, 15-30 days by Sea.

Our Advantage

1.Stable quality, high quality satisfy customer’s high grade sourcing request.

2.Competitive price .

3.Correct delivery time promise.

4.Continuous improvement make sure the long-term cooperation.

5.Honest service for your whole sourcing process


1.Cooperate with research institutions, we strictly control the process from raw material to finished product.

2.The customer comes first, we provide reasonable price, high quality product and prompt shipment.

3.We can send the goods to your delivery address directly. It is relatively safe and fast. We have ready goods in stock.
4.Quick and clear response to customers questions.
5.Warm after sale service, we will help to solve the problems in your usage.
5.We could make our price discount if you place a substantial order with us.


Product expansion

1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the Raw Material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories.

2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.

3> Fragrance And Spices: Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.

4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, resins, additives, and other intermediates.

5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion.

6> Pharmaceutical Intermediates: The so-called pharmaceutical intermediates, refers to the production of pharmaceutical products in the process, the use of raw materials, materials, accessories and other intermediate products.

7> Agricultural Chemicals: Research and agriculture related chemical, including pesticide, plant growth regulator, fertilizer, compound fertilizer, herbicide etc.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top