dye|World dye variety

Name:C.I.Direct Violet 4,C.I.22555

Molecular Structure: Double azo class

C.I.Direct Violet 4,C.I.22555,CAS 6472-95-3,728.66,C32H22N6Na2O8S2,Sirius Red Violet RL

Molecular Formula:C₃₂H₂₂N₆Na₂O₈S₂

Molecular Weight: 728.66

CAS Registry Number:6472-95-3

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first in acid conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: dark red light purple. Soluble in water for wine red, and adequate soluble in alcohol for product red. In the dark for the strong sulfuric acid, diluted Red sauce for.

List of Suppliers:

Sirius Red Violet RL( Classic Dyestuffs Inc )