dye|World dye variety

Name:C.I.Mordant Brown 69,C.I.20120

Molecular Structure: Double azo class

C.I.Mordant Brown 69,C.I.20120,CAS 5850-08-8,479.40,C18H14N7NaO6S,Kemachrome Brown 7G,Mordant Brown No. 12

Molecular Formula:C₁₈H₁₄N₇NaO₆S

Molecular Weight: 479.40

CAS Registry Number:5850-08-8

Manufacturing Methods :  2-Amino-4-nitrophenol and 4-Aminobenzenesulfonic acid respectively diazotization, in turn, and Benzene-1,3-diamine coupling.

Properties and Applications:  dark red light brown. Soluble in water for yellow brown. In concentrated sulfuric acid for yellow brown, dilution after yellow brown. Dye aqueous solution to join concentrated hydrochloric acid have yellow brown precipitation; Join concentrated sodium hydroxide solution for yellow brown solution.

List of Suppliers:

Kemachrome Brown 7G( Karsandas Mavji )

Mordant Brown No. 12( Day-Glo Color Corp. )