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High quality Letrozole(Femara)

Product CAS No. : 112809-51-5

Payment & Shipping Terms : Minimum Order Quantity: 10g...... Price:Negotiable .......................................................................................... Payment Terms: Western union, MoneyGram and BankWire ................... Delivery Time:The day after the payment ...................................................... Supply Ability: Mass Stock

Introduction

English name

Letrozole

 

Alias

Femara

CAS No.

112809-51-5

Molecular formula

C17H11N5

Molecular weight

285.3

Characters

White power .

Use

pharmaceutical intermediates, after menopause advanced breast cancer, more for anti-estrogen therapy failed two line

therapy.

Packing

According to customer requirements for packaging

4,4'-(1H-1,2,4-TRIAZOL-1-YLMETHYLENE) BIS-BENZONITRILE

 

Specifications:

Tests

Specifications

Results

Appearance

White or off-white crystaline powder

White

Crystalline powder

Solubility

Soluble in Chloroform;

Soluble in ethanol when heated

Conform

ldentification

(1)Maximum absorption in wavelength of 240 nm

Minimum absorption in wavelength of 215 nm

Conform

Conform

(2)Infrared spectrum should be in accordance the dominant peak of contrast

In accordance with the dominant peak of contrast

Melting points

182℃-184℃

182℃

Related substances

≤0.5%

0.3%

Single impurity

≤0.3%

0.2%

Loss on drying

≤1.0%

0.8%

[Assay]C17H11N5

(On anhydrous basis)

≥98.0%

99.2%

Conclusion

Conforms Specifications of Enterprise Standard.


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