dye|World dye variety

Name:C.I.Direct Blue 175,C.I.35465

Molecular Structure: Multi-azo class

C.I.Direct Blue 175,C.I.35465,CAS 6428-41-7,1594.24,C52H30N11Na7O25S7,Formanil Blue BB

Molecular Formula:C₅₂H₃₀N₁₁Na₇O₂₅S₇

Molecular Weight: 1594.24

CAS Registry Number:6428-41-7

Manufacturing Methods : 5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  (2 Moore) coupled, then double nitriding, and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid (2 Moore) coupled:

Properties and Applications:  navy blue. Soluble in water for dark red light blue, insoluble in organic solvents. The strong sulfuric acid for blue-ray gray, diluted dark purple solution for blue-ray, and accompanied by precipitation; In 10% of sulfuric acid for shallow dark. The dye solution to join 10% sodium hydroxide solution for shallow dark.

List of Suppliers:

Formanil Blue BB ( American Aniline Products Inc.  )