dye|World dye variety

Name:C.I.Direct Red 17,C.I.22150

Molecular Structure: Double azo class

C.I.Direct Red 17,C.I.22150,CAS 2769-07-5,697.65,C32H21N5Na2O7S2,Direct Bordeaux B,Direct Rubine A

Molecular Formula:C₃₂H₂₁N₅Na₂O₇S₂

Molecular Weight: 697.65

CAS Registry Number:2769-07-5

Manufacturing Methods :  4-(4-Aminophenyl)benzenamine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid coupling, and then and 4-Aminonaphthalene-1-sulfonic acid matches.

Properties and Applications: blue-ray red. Soluble in water for wine red, and adequate soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted as a light red light blue.. The dye solution to join strong hydrochloric acid for blue precipitation; Add thick sodium hydroxide solution for Red sauce, precipitation.

List of Suppliers:

Apollo Direct Bordeaux B ( Taiheung Corp )

Atul Direct Rubine A( Atul Limited )