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Top quanlity Anti Estrogen Powder Letrozole

Product Description

Letrozole

Alias: Femara

CAS No:

MF: C17H11N5

MW: 285.3

Purity: 98%

Appearance: white powder.

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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