Dyestuff and Pigment

CAS# 81-64-1

Molecular Formula : C14H8O4

Specification: 98.5%    

Packing: 25kg/bag

Capacity: annual 3000mt

Profile
1,4-Dihydroxyanthraquinone, also called quinizarin or Solvent Orange 86, is an organic compound derived from anthroquinone. Quinizarin is an orange or red-brown crystalline powder. It is formally derived from anthraquinone by replacement of two hydrogen atoms by hydroxyl (OH) groups. It is one of ten dihydroxyanthraquinone isomers and occurs in small amounts (as a glycoside) in the root of the madder plant, Rubia tinctorum.
 
Technical Data Sheet 

Items	Specification	Results
Appearance	Fancy Vivid Orange	Fancy Vivid Orange
Assay	≥98.5%	99.95%
Water	≤0.2%	0.08%
Melting point	≥198℃	198.4%
toluene insoluble	≤0.3%	0.18%