dye|World dye variety

Name:C.I.Direct Brown 126,C.I.29085

Molecular Structure: Double azo class

C.I.Direct Brown 126,C.I.29085,CAS 6420-35-5,770.75,C31H32N8Na2O9S2,Diazo Brown 3G

Molecular Formula:C₃₁H₃₂N₈Na₂O₉S₂

Molecular Weight: 770.75

CAS Registry Number:6420-35-5

Manufacturing Methods :  2′-Methyl-3′-ammo-5′-sulfooxanilic acid diazo, and 2-Amino-4-methylanisole coupling, and then hydrolyzed acid base and make the grass phosgenated.

Properties and Applications: yellow light brown. Soluble in water for golden brown, easily soluble in ethanol. The strong sulfuric acid for dark purple, yellow for olive diluted. The dye solution to join strong hydrochloric acid with olives yellow to brown precipitation; Add thick sodium hydroxide solution for green light yellow until golden brown.

List of Suppliers:

Diazo Brown 3G( Bayer Group )