Molecular Weight

495.53

Molecular Structure

Packing

25kg/drum

Capacity

Production upon order

Storage

Store in a tightly sealed container away from heat and direct light, and in a cool dry place.

Application

It is a medication for the symptomatic treatment of benign prostatic hyperplasia. It acts as an α1-adrenoceptor antagonist with high uroselectivity (selectivity for the prostate).

Appearance

 White or off-white crystalline powder

Identification

Meets the requirements

Specific Rotation
     (1% Solution in Methanol)

-17°~ -12°

Related Substance (by HPLC)

Meets the requirements

Individual Impurity

≤0.5%

Total Impurities

≤1.0%

Loss on drying
     (In vacuum at 80 ℃ till constant weight)

≤1.0%

Residue on Ignition

≤0.2%

Heavy Metals

≤20ppm

Assay

98.5 %

Standard

FS