5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt

CAS No.
6459-89-8
Chemical Name:
5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt
Synonyms
C.I.22565;Direct Blue 48;C.I.Direct Blue 48;C.I.Direct Blue 48:C.I.22565;2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, trisodium salt;5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt
CBNumber:
CB52309393
Molecular Formula:
C32H21N6Na3O11S3
Molecular Weight:
830.70705
MDL Number:
MOL File:
6459-89-8.mol

5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt Properties

EPA Substance Registry System C.I. Direct Blue 48 (6459-89-8)

5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions in turn and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling.

Properties and Applications

dark red light blue and red light navy. Soluble in water, slightly soluble in ethanol and acetone. The strong sulfuric acid for blue; In nitric acid for gray.

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

5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt Preparation Products And Raw materials

5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt C.I.22565 C.I.Direct Blue 48 2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, trisodium salt C.I.Direct Blue 48:C.I.22565 Direct Blue 48 6459-89-8