dye|World dye variety

Name:C.I.Acid Blue 128,C.I.20435

Molecular Structure: Double azo class

C.I.Acid Blue 128,C.I.20435,CAS 5850-33-9,766.93,C28H16Cl3N5Na2O8S2,Acilan Fast Green BBL

Molecular Formula:C₂₈H₁₆Cl₃N₅Na₂O₈S₂

Molecular Weight: 766.93

CAS Registry Number:5850-33-9

Manufacturing Methods :  2,5-Dichlorobenzenamine diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid in acid conditions coupled, then and diazo of 5-Chloro-2-phenoxybenzenamine in alkaline conditions coupled.

Properties and Applications: dark green light blue. Soluble in water, slightly soluble in ethanol to blue. The strong sulfuric acid for dark blue-green, diluted to blue. Join strong hydrochloric acid in aqueous solution for green light blue; Add sodium hydroxide to blue.

List of Suppliers:

Acilan Fast Green BBL( Bayer Group )