dye|World dye variety

Name:C.I.Direct Violet 64,C.I.28200

Molecular Structure: Double azo class

C.I.Direct Violet 64,C.I.28200,CAS 5893-30-1,719.65,C31H23N5Na2O9S2,Direct Light Violet MB

Molecular Formula:C₃₁H₂₃N₅Na₂O₉S₂

Molecular Weight: 719.65

CAS Registry Number:5893-30-1

Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, and 2-Amino-4-methylanisole 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 Violet. The strong sulfuric acid for blu-ray green, blue purple after diluted precipitation. The dye solution to join strong hydrochloric acid blue precipitation; Sodium hydroxide solution to blue precipitation.

List of Suppliers:

Direct Light Violet MB( Industria Chimica Dott  )