6655-95-4

Basic information

• Product Name: tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate
• Synonyms: tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate;Tetrasodium 2,2'-((4,4'-bis((1-hydroxy-6-((4-methoxyphenyl)amino)-3-sulphonato-2-naphthyl)azo)(1,1'- biphenyl)-3,3'-diyl)bis(oxy))diacetate;DIRECTBLUE158;Acetic acid, 2,2'-[[4,4'-bis[[1-hydroxy- 6-[(4-methoxyphenyl)amino]-3-sulfo-2-naphthalenyl ]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]bis-, tetrasodium salt;C.I. Direct Blue 158;2,2'-[[4,4'-Bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-3,3'-diyl]bis(oxy)]diacetic acid tetrasodium salt;C.I.24555
• CAS NO: 6655-95-4
• Molecular Formula: C50H36N6Na4O16S2
• Molecular Weight: 1132.94052
• EINECS: 229-683-5
• Product Categories: Organics
• Mol File: 6655-95-4.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate(CAS DataBase Reference)
• NIST Chemistry Reference: tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate(6655-95-4)
• EPA Substance Registry System: tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate(6655-95-4)

Safety Data

• Hazardous Substances Data: 6655-95-4(Hazardous Substances Data)

Usage

Description

Tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate is a dark blue to dark grey powder that is soluble in water and slightly soluble in alcohol. It is a strong sulfuric acid dye that produces a blue color, which turns purple when diluted and has precipitation. The dye water solution is colorful blue, and when strong hydrochloric acid is added, it remains bright blue with precipitation. When thick sodium hydroxide solution is added, it turns deep purple with precipitation. Copper ions in dyeing color shade remain basically unchanged, while iron ions produce a greenish tint.

Uses

Used in Textile Industry:
Tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate is used as a dye for cotton, viscose, and their blended fabrics, as well as silk, leather, and paper dyeing and printing. It provides good acid resistance, alkali resistance, light fastness, and soaping properties, making it suitable for various dyeing and printing applications.
Used in Paper Industry:
In the paper industry, tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate is used as a dye for paper dyeing and printing. It offers good water resistance, stain fading, and stain resistance properties, making it suitable for various paper dyeing and printing applications.
Standard:
The standard for tetrasodium 2,2'-[[4,4'-bis[[1-hydroxy-6-[(4-methoxyphenyl)amino]-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-diyl]bis(oxy)]diacetate is as follows:
Acid Resistance: ISO 3-4, AATCC 3-4
Alkali Resistance: ISO 4, AATCC 5
Light Fastness: ISO 6, AATCC 2-3
Soaping: ISO 4, AATCC 1-2
Water: ISO 4-5, AATCC 3
These standards indicate the performance and quality of the dye in various conditions, making it suitable for different applications in the textile and paper industries.

Preparation

2-[2-Amino-5-[4-amino-3-(carboxymethoxy)phenyl]-phenoxy]acetic acid double nitriding, and 4-Hydroxy-7-(4-methoxyphenylamino)naphthalene-2-sulfonic acid (2 Moore) coupled.

Standard

Acid Resistance

Fading

Stain

ISO

3-4

AATCC

3-4