C.I. Direct brown 151, disodium salt

CAS No.
10130-38-8
Chemical Name:
C.I. Direct brown 151, disodium salt
Synonyms
Direct Brown 151;C.I.Direct Brown 151:C.I.31685;C.I. Direct brown 151, disodium salt;2,7-Naphthalenedisulfonic acid, 6-((2,4-diaminophenyl)azo)-3-((4'-((2,4-diaminophenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, disodium salt
CBNumber:
CB32497119
Molecular Formula:
C34H29N10NaO7S2
Molecular Weight:
776.78
MDL Number:
MOL File:
10130-38-8.mol

C.I. Direct brown 151, disodium salt Properties

C.I. Direct brown 151, disodium salt Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions before 3-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, product to diazo, and Benzene-1,3-diamine (2 Moore) coupled.

Properties and Applications

dark red light brown. Slightly soluble in water for red sauce, soluble in ethanol. In the dark for the strong sulfuric acid, diluted light for palm gray, with black precipitation. The dye solution with strong hydrochloric acid has the purple precipitation; With strong sodium hydroxide solution for red to blue light is red.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 4-5 2 3 4
AATCC 5 5 3-4 2-3 5

C.I. Direct brown 151, disodium salt Preparation Products And Raw materials

2,7-Naphthalenedisulfonic acid, 6-((2,4-diaminophenyl)azo)-3-((4'-((2,4-diaminophenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, disodium salt C.I. Direct brown 151, disodium salt Direct Brown 151 C.I.Direct Brown 151:C.I.31685 10130-38-8