dye|World dye variety

Name:C.I.Direct Violet 63,C.I.28190

Molecular Structure: Double azo class

C.I.Direct Violet 63,C.I.28190,CAS 5873-27-8,705.63,C30H21N5Na2O9S2,Direct Light Violet M

Molecular Formula:C₃₀H₂₁N₅Na₂O₉S₂

Molecular Weight: 705.63

CAS Registry Number:5873-27-8

Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, and O-Anisidine coupling, its product to diazo, and 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: red light purple. Soluble in water for red light purple. The strong sulfuric acid for green light blue, dilute after dark purple precipitation. Dye with hydrochloric acid solution is dark red light blue precipitation.

List of Suppliers:

Direct Light Violet M( Industria Chimica Dott  )