dye|World dye variety

Name:C.I.Direct Blue 230,C.I.22455

Molecular Structure: Double azo class

C.I.Direct Blue 230,C.I.22455,CAS 6527-65-7,815.7,C32H20N5Na3O11S3

Molecular Formula:C₃₂H₂₀N₅Na₃O₁₁S₃

Molecular Weight: 815.7

CAS Registry Number:6527-65-7

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and then and 4-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications: blue

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