dye|World dye variety

Name:C.I.Vat Orange 21,C.I.69700

Molecular Structure: anthraquinones

Molecular Formula:

Molecular Weight:

CAS Registry Number:1328-39-8

Manufacturing Methods :  in a higher temperature, 2-Methylanthracene-9,10-dione (or some chlorine derivatives) and brimstone common heating, its product Sodium hypochlorite with treatment (with or without sulfuric acid pretreatment all but)

Properties and Applications:  yellow orange. Insoluble in Xylene. The strong sulfuric acid to red light brown, after diluted brown precipitation; Hidden color reduction in alkaline solution for brown in the body; In the acidic hidden color reduction in the solution body for orange.

List of Suppliers:

Cibanone Orange R( Society of Chemical Industry )