82944-44-3

Basic information

• Product Name: 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt
• Synonyms: 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt;C.I.29171;C.I.Direct Violet 103
• CAS NO: 82944-44-3
• Molecular Weight: 0
• Mol File: 82944-44-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt(82944-44-3)
• EPA Substance Registry System: 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt(82944-44-3)

Safety Data

• Hazardous Substances Data: 82944-44-3(Hazardous Substances Data)

Usage

Description

7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is a complex organic compound characterized by its blue-purple color. It exhibits properties such as acid resistance, alkali resistance, light fastness, and is used in various applications including soaping, water, fading, and stain resistance. 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt has a pH range of 4-5 and is rated 4 on the standard scale.

Uses

Used in Dye Industry:
7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a dye for its blue-purple color, providing acid and alkali resistance, light fastness, and stain resistance properties.
Used in Textile Industry:
In the textile industry, 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a colorant for fabrics, offering fade resistance and stain resistance, making it suitable for various textile applications.
Used in Cosmetics Industry:
7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a color additive in cosmetics, providing a blue-purple hue and ensuring product stability with its acid and alkali resistance properties.
Used in Paper Industry:
In the paper industry, 7,7'-(Carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a colorant for paper products, offering light fastness and resistance to fading and staining.

Preparation

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

Standard

Acid Resistance

Fading

Stain

ISO

4-5