dye|World dye variety

Name:C.I.Direct Brown 54,C.I.31735

Molecular Structure: trisazo class

C.I.Direct Brown 54,C.I.31735,CAS 8003-50-7,716.63,C35H22N6Na2O7S

Molecular Formula:C₃₅H₂₂N₆Na₂O₇S

Molecular Weight: 716.63

CAS Registry Number:8003-50-7

Manufacturing Methods :  4-(4-Aminophenyl)benzenamine double nitriding,first coupled with 2-Hydroxybenzoic acid, then with 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, coupled with phenol.

Properties and Applications: brown. Soluble in water for yellow brown, and adequate soluble in alcohol for yellow brown to olive. In the dark for the strong sulfuric acid to blue-black, diluted for shallow olive to yellow brown. The dye solution to join strong hydrochloric acid for olive to yellow brown; Add thick sodium hydroxide solution for orange brown.

List of Suppliers: