3624-64-4

Basic information

• Product Name: sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate
• Synonyms: sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate;6-Hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt;C.I.16060;C.I.Mordant Red 34;Chrome Violet MS
• CAS NO: 3624-64-4
• Molecular Formula: C16H10N3NaO7S
• Molecular Weight: 411.32127
• EINECS: 222-827-8
• Mol File: 3624-64-4.mol
• Article Data: 0

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate(CAS DataBase Reference)
• NIST Chemistry Reference: sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate(3624-64-4)
• EPA Substance Registry System: sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate(3624-64-4)

Safety Data

• Hazardous Substances Data: 3624-64-4(Hazardous Substances Data)

Usage

Description

Sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate is a water-soluble dye that exhibits different colors in various conditions. It is orange-brown in water, red in concentrated sulfuric acid, and turns to orange upon dilution. It also shows different colors when mixed with other substances, such as orange when mixed with concentrated hydrochloric acid and orange-brown when mixed with strong caustic.

Uses

Used in Textile Industry:
Sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate is used as a dye for coloring textiles. It is known for its good light fastness, ironing fastness, and perspiration fastness, making it suitable for various textile applications.
Used in Analytical Chemistry:
Sodium 6-hydroxy-5-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2-sulphonate can be used as an analytical reagent in various chemical tests due to its color-changing properties in different conditions.
Used in Research:
The dye can be used in research for studying the interactions between different substances and its color-changing properties, which can provide valuable insights into chemical reactions and processes.

Preparation

2-Amino-4-nitrophenol diazotization, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.

Standard

Ironing Fastness

Alkali

Acid

ISO

4

InChI:InChI=1/C16H11N3O7S.Na/c20-14-6-2-10(19(22)23)8-13(14)17-18-16-12-4-3-11(27(24,25)26)7-9(12)1-5-15(16)21;/h1-8,17,20H,(H,24,25,26);/q;+1/p-1/b18-16-;