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Direct Blue 177

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

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.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
AATCC 5 5 4 2 2

List of Suppliers:

Formanil Blue 4R( American Aniline Products Inc.  )


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