dye|World dye variety

Name:C.I.Direct Brown 37,C.I.20090

Molecular Structure: Single azo class

C.I.Direct Brown 37,C.I.20090,CAS 12262-06-5,518.52,C26H19N6NaO3S,Cotton Brown N,Direct Brown

Molecular Formula:C₂₆H₁₉N₆NaO₃S

Molecular Weight: 518.52

CAS Registry Number:12262-06-5

Manufacturing Methods : Naphthalen-1-amine diazo, and Benzene-1,3-diamine coupling, 4-Aminonaphthalene-1-sulfonic acid diazo again, and the generation of single accidentally coupled nitrogen compounds.

Properties and Applications:  red light brown. Moderate soluble in water for yellow brown, and adequate soluble in alcohol. The strong sulfuric acid for dark blue, diluted for brown. The dye solution to join strong hydrochloric acid have yellow olive precipitation; Add thick sodium hydroxide solution have orange brown precipitation.

List of Suppliers:

Cotton Brown N[( IG Farbenindustrie AG )

Direct Brown(Amar Impex)