Letrozole 112809-51- CAS NO.112809-51-5

Product name: 

Letrozole

MFG Date:

2013-06-07

Batch No:

20130607

Exp. Date:

2015-06-06

Report Date:

2013-06-15

Quantity:

200kg

Item

Standard

Result

Characters

White or off-white crystaline powder

 Off-white Crystalline powder

Solubility

Practically insoluble in water,freely soluble in methylene chloride,sparingly soluble in methanol

Complies

Identification

(1) Maximum absorption in wavelength of 240 nm

Minimum absorption in wavelength of 215 nm

Complies

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

Complies

Melting point

181℃~185℃

182.2℃-183.6℃

Related substances

Impurity  A ≤0.3%

Not detected

Impurity  B ≤0.2%

Not detected

Single impurity ≤0.1%

0.01%

Other total impurity≤0.3%

0.05%

Residue on ignition

≤0.1%

0.04%

Water

≤0.3%

0.06%

Heavy metals

≤10ppm

Complies

Assay

98.0%-102.0%

99.86%

Conclusion

Confirms