dye|World dye variety

Name:C.I.Acid Brown 90,C.I.17100

Molecular Structure: Single azo class

C.I.Acid Brown 90,C.I.17100,CAS 6360-14-1,481.41,C17H13N3Na2O7S2,Igenal Brown PTF

Molecular Formula:C₁₇H₁₃N₃Na₂O₇S₂

Molecular Weight: 481.41

CAS Registry Number: 6360-14-1

Manufacturing Methods :   (4-Aminophenyl)methanesulfonic acid diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  coupling.

Properties and Applications: red light brown. Soluble in water for red orange brown. The strong sulfuric acid for red, diluted into orange. Adding strong hydrochloric acid in aqueous solution for orange; Add thick sodium hydroxide solution for orange brown.

List of Suppliers:

Igenal Brown PTF( IG Farbenindustrie AG )