dye|World dye variety

Name:C.I.Direct Brown 153,C.I.31510

Molecular Structure: trisazo class

C.I.Direct Brown 153,C.I.31510,CAS 6428-45-1,618.60,C28H23N10NaO4S,Azogen Brown R

Molecular Formula:C₂₈H₂₃N₁₀NaO₄S

Molecular Weight: 618.60

CAS Registry Number:6428-45-1

Manufacturing Methods : N-(3-aminophenyl)formamide diazo, first in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  coupling, hydrolysis amino acylation, product to double nitriding, and Benzene-1,3-diamine (2 Moore) coupled.

Properties and Applications: Dark red light brown. Soluble in water, soluble in ethanol right amount for red light brown. The strong sulfuric acid is palm in light red to red sauce, diluted for brown. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution for red light brown.

List of Suppliers:

Azogen Brown R( Chemapol )