Flavoxate hydrochloride

Characters

White or almost crystalline ,ordorless, bitter

White crystalline powder, odorless, bitter

Solubility

Soluble in chloroforml, sparingly soluble in water or methanol, practically insoluble in acetone or diethyl ether, soluble in acetic acid

Complied

Absorpiton index

300~330

314

Identification

Chemical identification

Positive

Positive

UV-VIS

The maximum absorption:241±2nm,293±2nm and 318±2nm.

Complied

IR

The IR absorption spectrum complied with that of the reference(1031)

Complied

Chloride

Positive

Positive

Test

Clarity

Clear

Residual solvents

Methanol       ≤0.3%

N/D

Dichloromethane ≤0.06%

N/D

Toluene         ≤0.089%

N/D

Related substances

If there are impurity points, it should be no more than two. Compared with the main point of the reference solution, the color of hte impurity point at the same position should be not darker and compared with the main impurity points, the color of the other points should be not darker.

Complied

Loss on drying

≤0.5%

0.02%

Residue on ignition

≤0.1%

0.02%

Heavy metal

≤10ppm

Less than 10ppm

Arsenic salt

≤0.0001%

Less than 0.0001

Assay

Based on dried substance, not less than 99%

 100.4%