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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