tazarotene

ITEMS

SPECIFICATION

RESULTS

BP2010 /EP6

Appearance

white crystalline powder

Conforms

Melting point

About 205°C

206.4°C~206.7°C

Identification

Meet the requirements

Conforms

Appearance of

solution

Clear, not more intense than Y7

Conforms

PH

2.4~3.0

2.60

Loss on drying

≤0.5%

0.04%

Sulphated ash

≤0.1%

0.01%

Heavy metals

≤20 ppm

<20 ppm

Related substances

≤0.25%

Conforms

Assay

99.0%~101.0%

99.8%

USP32

Identification

Meet the requirements

Conforms

Loss on drying

≤0.5%

0.04%

Residue on ignition

≤0.1%

0.01%

Heavy metals

≤0.003%

<0.003%

Residue solvent - Ethanol

≤0.5%

<0.04%

Chloride

16.9%~17.6%

17.1%

Assay

98.0%~102.0%

100.0%

Conclusion: The product complies with BP2010/USP32/EP6 standard