维A酸

Molecular Weight

300.44

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

Tretinoin is most commonly used as a form of acne treatment.

Description

 Yellow crystalline powder

Identification

The IR absorption spectrum should correspond with reference spectrum

Should exhibits maximum absorption at 352nm

Loss on drying

Not more than 0.5%

Sulphated ash

Not more than 0.1%

Heavy Metals

Not more than 0.002%

Related substances:
     Isotretinoin
     Unspecified Impurities
     Total impurities

0.5% MAX
0.2% MAX
1.0% MAX

Organic Volatile Impurity

Ethyl acetate Not more than 5000 ppm

Ethanol Not more than 5000 ppm

Assay

98.0~102.0 % (calculated on the dried basis)

Standard

EP 8.0