dye|World dye variety

Name:C.I.Direct Violet 77,C.I.28725

Molecular Structure: Double azo class

C.I.Direct Violet 77,C.I.28725,CAS 5852-31-3,767.16,C31H21ClN6Na2O7S3,Diazo Light Violet BL

Molecular Formula:C₃₁H₂₁ClN₆Na₂O₇S₃

Molecular Weight: 767.16

CAS Registry Number:5852-31-3

Manufacturing Methods : 2-Amino-5-chlorobenzenesulfonic acid diazo, and 2,5-Dimethylbenzenamine coupling, its product to diazo, and 2-(4-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling.

Properties and Applications: blue purple. Moderate soluble in water for purplish red color, soluble in ethanol for red light purple. The strong sulfuric acid for green light blue, diluted red for brown. Dye with strong hydrochloric acid solution for red sauce, precipitation; Add thick sodium hydroxide solution has the purple precipitation.

List of Suppliers:

Diazo Light Violet BL( Bayer Group )