6406-48-0

Basic information

• Product Name: 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt
• Synonyms: 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt;Benzo Scarlet FBS;C.I.26720;C.I.Direct Red 57
• CAS NO: 6406-48-0
• Molecular Weight: 0
• Mol File: 6406-48-0.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt(6406-48-0)
• EPA Substance Registry System: 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt(6406-48-0)

Safety Data

• Hazardous Substances Data: 6406-48-0(Hazardous Substances Data)

Usage

Description

6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt is a water-soluble azo dye that exhibits a colorful red-yellow light. It is characterized by its ability to produce an orange-red to bright red color in water and a pale light orange color when dissolved in alcohol. The dye solution changes color in the presence of strong acids and bases, turning red in strong sulfuric acid and orange-brown when mixed with a concentrated sodium hydroxide solution.

Uses

Used in Textile Industry:
6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt is used as a dye for coloring textiles. Its ability to produce a range of red and orange hues makes it suitable for various applications in the textile industry, such as dyeing fabrics and yarns.
Used in Paper Industry:
In the paper industry, 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt is used as a pigment to impart color to paper products. Its water solubility and color properties make it suitable for coloring paper and paperboard.
Used in Plastics and Polymers Industry:
6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt is used as a colorant in the plastics and polymers industry. Its ability to produce a range of red and orange hues makes it suitable for coloring various types of plastics and polymers.
Standard:
The standard for 6-Hydroxy-2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-7-phenylazo-1H-naphth[1,2-d]imidazole-8-sulfonic acid sodium salt includes properties such as acid resistance, alkali resistance, light fastness, soaping, water, fading, stain fading, and stain. The ISO rating for this dye is 4 for acid resistance, 4 for alkali resistance, 3 for light fastness, and 1-2 for soaping, water, fading, stain fading, and stain.

Preparation

aniline diazo, and 2-(3-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling, its product to diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.

Standard

Acid Resistance

Fading

Stain

ISO

4

InChI:InChI=1/C33H22N6O8S2.2Na/c40-31-22-12-5-4-11-21(22)27(48(42,43)44)17-26(31)38-37-20-10-6-7-18(15-20)33-34-25-14-13-23-24(29(25)35-33)16-28(49(45,46)47)30(32(23)41)39-36-19-8-2-1-3-9-19;;/h1-17,40-41H,(H,34,35)(H,42,43,44)(H,45,46,47);;/q;2*+1/p-2