7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt

CAS No.
61968-53-4
Chemical Name:
7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt
Synonyms
C.I.29172;Direct Red 176;C.I.Direct Red 176;C.I.Direct Red 176:C.I.29172;7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt
CBNumber:
CB12352058
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
61968-53-4.mol

7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt Chemical Properties,Uses,Production

Preparation

2-Amino-4-nitrophenol (2 Moore) diazo, coupled with N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea.

Properties and Applications

blue and red to red light purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 1 4-5 6-7 4 5
AATCC 2 4 5-6 4 5

7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt Preparation Products And Raw materials

7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid]disodium salt C.I.29172 C.I.Direct Red 176 Direct Red 176 C.I.Direct Red 176:C.I.29172 61968-53-4