Letrozole CAS:112809-51-5

Letrozole CAS:112809-51-5

Sinoway Industrial Co.,Ltd is a famous China letrozole manufacturer and supplier, welcome to buy GMP and EP letrozole from us and check the price with us. Basic information of Letrozole: Use of Letrozole: A nonsteroidal aromatase inhibitor structurally related to Fadrozole. Antineoplastic COA of...

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Product Details

Basic information of Letrozole CAS:112809-51-5

Name

Letrozole

Alias

4,4'-(1H-1,2,4-TRIAZOL-1-YLMETHYLENE) BIS-BENZONITRILE;FEMARA;CGS-20267;LETROZOL;LETROZOLE;LetrozoleUsp28;Letrozole99%;CGS-20267, Femara

CAS NO.

112809-51-5

Molecular Formula

C17H11N5

Molecular Weight

285.3

Quality Standard

USP32

Package Size

25kg/drum

Use of Letrozole:

A nonsteroidal aromatase inhibitor structurally related to Fadrozole. Antineoplastic

COA of Letrozole :

Items

Specification

Appearance

White to yellowish, crystalline powder

Identification

A.IR spectrum of sample should be identical to that of Reference Standard;

The retention time of major peak in the chromatogram of the Assay preparation should correspond to that in the chromatogram of Standard preparation, as obtained in the Assay.
Showing the white precipitate reaction.

Water

Not more than 0.3%

Residue on Ignition

Not more than 0.1%

Heavy Metals

Not more than 0.001%


Related Compounds

Compound A: Not more than 0.1%

4,4',4'-methylidenetrisbenzonitrile

Not more than 0.2%

Any other impurity

Not more than 0.2%

All other impurities

Not more than 0.2%

Residual Sovents

Ethanol: Not more than 3000ppm

Ethyl acetate

Not more than 2000ppm

DMF

Not more than 880ppm

Microbe Limit

Bacteria: Not more than 200/g

Mold and yeast

Not more than 50/g

Escherichia coli

should be absent

Assay(anhydrous)

98.0% to 102.0% of Cl7H11N5 on dried basis

Packaging and Storage

Preserve in tight containers at controlled room temperature.

Conclusion

Conforms to the USP32.

For more details, pls. contact with me.
Ms. Denise Lai
International Trade Dept.
Sinoway Industrial Co.,Ltd 
(established in 1987, ISO9001:2008 and SGS certificated)
=============================
Tel:0086 592 5887167
Fax:0086 592 5854960
Skype: sinoway-dl
E-Mail: denise@china-sinoway.com 
Mobile/Wechat/WhatsApp: 0086 13459239406


Specializing in the research, development and custom manufacturing of letrozole cas:112809-51-5, SINOWAY, though situated in China, enjoys good reputation among international customers. We supply you with pure natural and well extracted products which can give the best care.

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