CAS:738-70-5 Trimethoprim CAS NO.738-70-5

Min.Order Quantity:: 1 Kilogram

Purity:: 99.5%

Port:: all chinese port

Payment Terms:: T/T,MoneyGram,Other

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Product Details

Keywords

Trimethoprim
Trimethoprim
2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine

Quick Details

ProName: CAS:738-70-5 Trimethoprim
CasNo: 738-70-5
Molecular Formula: C14H18N4O3
Appearance: White powder
Application: Medicine
DeliveryTime: within 3-4days after received your pay...
PackAge: according to customers' requirements
Port: all chinese port
ProductionCapacity: 100 Kilogram/Week
Purity: 99.5%
Storage: store in cool and dry
Transportation: by sea or by air
LimitNum: 1 Kilogram

Superiority

chemical name: trimethoprim (tmp)

other name:

abaprim;5-((3,4,5-trimethoxyphenyl)methyl)-2,4-pyrimidinediamine;5-(3,4,5-trimethoxybenzyl)-2,4-diaminopyrimidine

cas: 738-70-5

einecs no.: 212-006-2

formula: c14h18n4o3

molecular weight: 290.32

purity: 99.8%

appearance: white or yellowish-white powder

bp/usp pharmaceutical

function:

antibacterial drug efficiency, separate for respiratory tract infections, urinary tract infections,intestinal infections and other illnesses. range and similar antibacterial sulfonamides, in combination with sulfa drugs or in combination with antibiotics, can significantly improve drug efficacy. for respiratory tract infections, senile chronic bronchitis, dysentery, urinary tract infection, pyelonephritis, enteritis, typhoid, gonorrhea, and some of the specific disease and other inflammation.

application:

cure pneogaster infection, chronic senile bronchitis, bacillary dysentery, urinary tract infection, pyelon-dphristis, enteritis typhoid, gonorrhea and some specific lesion etc

specification:

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

Details

kono chem co.,ltd is a leading producer of standardized herbal extracts, natural active ingredients and apis for pharmaceutical, health food and cosmetic industries.

the botanical raw materials are subject to strict selection and inspection, and extracts are manufactured according to methods developed by pioneer. they include inspections to guarantee a high quality standard from both analytico-chemical and therapeutic points of view, and take into consideration the state of art in different fields: research and development, analyses, processes and machinery, therapeutic applications on a scientific basis.

with our phytopharmaceutical background and knowledge through experience, pioneer can also provide a wide range of analytical services and reference substances to our clients. in addition, we also manufacture pharmaceutical raw materials of nucleotide species, mainly including as below: sam-e tosylate disulfate; sam-e 1,4-butanedisulfonate; polycytidylic acid; polyinosinic acid; adenosine triphosphate disodium; and cytidine triphosphate disodium; these items are our strongest advantage in china. meanwhile, we can do custom made pharmaceutical ingredients depending on our professional experts in the pharmaceutical and chemistry industry.

recently, kono chem has been working hard on the research and development of new cardiovascular and anesthesia drugs, we have got good achievements; moreover, we also offer natural anticancer drugs and other pharmaceutical intermediates. as a gmp standardized manufacturer, our products can meet or even exceed the standards of cp2010, usp32, bp2005 and ep4. presently, 80% and above of our products have been well-recognized in dozens of countries and regions, such as usa, eu, south america and southeast asia. there are experienced technicians working for our institutes now, all of them are skilled. pioneer is looking forward to cooperating with friends all over the world for getting collaborative development; we are willing to work with you to develop new drugs and expand new business, let's work together for bright future.