dye|World dye variety

Name:C.I.Direct Brown 208,C.I.20080

Molecular Structure: Double azo class

C.I.Direct Brown 208,C.I.20080,CAS 8005-95-6,570.51,C22H16N6Na2O6S2,Direct Brown GG

Molecular Formula:C₂₂H₁₆N₆Na₂O₆S₂

Molecular Weight: 570.51

CAS Registry Number:8005-95-6

Manufacturing Methods :3-Aminobenzenesulfonic acid (0.5 Moore) and 4-Aminobenzenesulfonic acid (0.5 Moore) diazo, and Benzene-1,3-diamine coupling, Naphthalen-1-amine diazo again, and formation of accidentally coupled nitrogen compounds.

Properties and Applications: brown. Moderate soluble in water for olive yellow brown, soluble in ethanol for yellow orange brown. The strong sulfuric acid for purple brown to black, with golden yellow diluted. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution for yellow orange brown, have precipitation.

List of Suppliers:

Direct Brown GG ( KCA Ltd )