The precipitated from acetic acid was orange crystal. Appropriate amount dissolved in ethanol is red, soluble in ether, brown and yellow fluorescence, soluble in caustic soda and ammonia in purple.


More About 1,4-Dihydroxyanthraquinone:

CAS NO: 81-64-1

Appearance: brownish yellow powder

Content (HPLC): ≥98.0%

Moisture: ≤1.0%

Melting point: 150-155 ° C



AppearanceBrown powder
Active ingredient content96.0% min
Ash content2.0% max
Moisture2.0% max


Use Of 1,4-Dihydroxyanthraquinone:

An intermediate used in the manufacture of vat dyes, disperse dyes and reactive dyes. Clear Orange 2G is mainly used for oil coloring. Can also be used for coloring various plastics, resins and their products.


Package Of 1,4-Dihydroxyanthraquinone:


Storage:The warehouse is ventilated and dried at low temperature; it is stored separately from oxidants and food additives.