dye|World dye variety

Name:C.I.Direct Blue 51,C.I.30340

Molecular Structure: trisazo class

C.I.Direct Blue 51,C.I.30340,CAS 6360-65-2,1003.71,C38H23Cl2N8Na3O11S3,Chloramine Blue HW

Molecular Formula:C₃₈H₂₃Cl₂N₈Na₃O₁₁S₃

Molecular Weight: 1003.71

CAS Registry Number:6360-65-2

Manufacturing Methods : 2,5-Dichlorobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and formation of accidentally nitrogen compounds and then in alkaline conditions and 3-Hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications: navy blue light to dark. Soluble in water to blue. The strong sulfuric acid in blue, purple and blue after diluted precipitation.

List of Suppliers:

Chloramine Blue HW( Sandoz Ltd )