6472-50-0

Basic information

• Product Name: disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate
• Synonyms: 1,1-Biphenyl-2,2-disulfonic acid, 4,4-bis(2-hydroxy-1-naphthalenyl)azo-5,5-dimethyl-, disodium salt;4,4'-Bis((2-hydroxy-1-naphthalenyl)azo)-5,5'-dimethyl-(1,1'-biphenyl)-2,2'-disulfonate disodium salt;4,4'-Bis[(2-hydroxy-1-naphtyl)azo]-5,5'-dimethyl-1,1'-biphenyl-2,2'-disulfonic acid disodium salt;C.I.Acid Red 89;(1,1'-Biphenyl)-2,2'-disulfonic acid, 4,4'-bis(2-(2-hydroxy-1-naphthalenyl)diazenyl)-5,5'-dimethyl-, sodium salt (1:2);Einecs 229-321-6;disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate
• CAS NO: 6472-50-0
• Molecular Formula: C34H24N4Na2O8S2
• Molecular Weight: 726.6859
• EINECS: 229-321-6
• Mol File: 6472-50-0.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate(CAS DataBase Reference)
• NIST Chemistry Reference: disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate(6472-50-0)
• EPA Substance Registry System: disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate(6472-50-0)

Safety Data

• Hazardous Substances Data: 6472-50-0(Hazardous Substances Data)

Usage

Description

Disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate is an organic compound with a complex chemical structure. It is characterized by its red color and solubility properties, being soluble in hot water, slightly soluble in cold water, and soluble in ethanol, acetone, and pyridine. It is also a soluble fiber element but insoluble in other organic solvents. disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate exhibits color changes when exposed to strong acids, such as sulfuric and nitric acid, and forms a red precipitate in the presence of strong hydrochloric acid. Additionally, it reacts with sodium hydroxide to produce an orange-brown color.

Uses

Used in Dye Industry:
Disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate is used as a dye for various applications due to its vibrant red color and solubility properties. Its ability to change color in the presence of different acids and bases makes it a versatile compound for creating a range of hues and shades.
Used in Textile Industry:
In the textile industry, disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate is used as a colorant for fabrics. Its light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater are rated according to ISO and AATCC standards, indicating its suitability for use in various textile applications.
Used in Analytical Chemistry:
Due to its color-changing properties in the presence of acids and bases, disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate can be used as an indicator or reagent in analytical chemistry for detecting the presence of specific ions or pH levels.
Used in Research and Development:
The unique properties of disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethyl[1,1'-biphenyl]-2,2'-disulphonate make it a valuable compound for research and development in various fields, including chemistry, materials science, and pharmaceuticals. Its potential applications in these areas are still being explored and may lead to new discoveries and innovations.

Preparation

5-Amino-2-(4-amino-5-methyl-2-sulfophenyl)-4-methylbenzenesulfonic double nitriding, and Naphthalen-2-ol (2 Moore) coupled.

Standard

Light Fastness

Fading

Stain

ISO

4

AATCC

3

InChI:InChI=1/C34H26N4O8S2.2Na/c1-19-15-25(31(47(41,42)43)17-27(19)35-37-33-23-9-5-3-7-21(23)11-13-29(33)39)26-16-20(2)28(18-32(26)48(44,45)46)36-38-34-24-10-6-4-8-22(24)12-14-30(34)40;;/h3-18,35-36H,1-2H3,(H,41,42,43)(H,44,45,46);;/q;2*+1/p-2/b37-33-,38-34+;;