dye|World dye variety

Name:C.I.Direct Blue 177,C.I.22625

Molecular Structure: Double azo class

C.I.Direct Blue 177,C.I.22625,CAS 6426-76-2,906.81,C38H25N6Na3O11S3,Formanil Blue 4R

Molecular Formula:C₃₈H₂₅N₆Na₃O₁₁S₃

Molecular Weight: 906.81

CAS Registry Number:6426-76-2

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and has 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid coupling.

Properties and Applications: red light blue. Soluble in water for red light blue, also soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted dark purple for blue-ray, precipitation. The dye solution to join 10% sodium hydroxide solution is more blue; Add 10% sulfuric acid remains the same.

List of Suppliers:

Formanil Blue 4R( American Aniline Products Inc.  )