Dyestuff and Pigment
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Dyestuff and Pigment
Dyestuff and Pigment

Dyestuff and Pigment


CAS# 81-64-1

Molecular Formula : C14H8O4

Specification: 98.5%    

Packing: 25kg/bag

Capacity: annual 3000mt

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%
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