4998-82-7

Basic information

• Product Name: 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol
• Synonyms: 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol;C.I.12200;C.I.Mordant Black 19;2-Naphthalenol, 1-((2-hydroxy-3,5-dinitrophenyl)azo)-;2-Naphthalenol, 1-(2-(2-hydroxy-3,5-dinitrophenyl)diazenyl)-;Einecs 225-663-5
• CAS NO: 4998-82-7
• Molecular Formula: C₁₆H₁₀N₄O₆
• Molecular Weight: 354.2738
• EINECS: 225-663-5
• Mol File: 4998-82-7.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 506.7°Cat760mmHg
• Flash Point: 260.2°C
• Appearance: /
• Density: 1.61g/cm³
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.733
• CAS DataBase Reference: 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol(CAS DataBase Reference)
• NIST Chemistry Reference: 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol(4998-82-7)
• EPA Substance Registry System: 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol(4998-82-7)

Safety Data

• Hazardous Substances Data: 4998-82-7(Hazardous Substances Data)

Usage

Description

1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol is an organic compound characterized by its distinct color-changing properties in the presence of various chemicals. It is blue in its standard form, turns red-brown when dissolved in hot water, and appears brilliant purple when dissolved in ethanol. It is insoluble in benzene and exhibits color changes when interacting with concentrated sulfuric acid, concentrated nitric acid, and concentrated hydrochloric acid.

Uses

Used in Textile Industry:
1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol is used as a colorant for textiles, providing a vibrant and long-lasting color to fabrics. Its light fastness and ironing fastness ratings of 4-5 on the ISO scale ensure that the color remains stable under various conditions, such as exposure to light and heat.
Used in Dye Industry:
In the dye industry, 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol is used as a dyestuff for various applications, including coloring fabrics, plastics, and other materials. Its unique color-changing properties make it a versatile choice for creating a wide range of hues and shades.
Used in Analytical Chemistry:
1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol can be employed as an analytical reagent in chemistry, particularly for the detection and quantification of certain metal ions. Its color-changing behavior in the presence of different chemicals makes it a useful tool for identifying and measuring the concentration of specific substances in a sample.
Used in Research and Development:
Due to its unique properties and color-changing characteristics, 1-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthol can be utilized in research and development for the creation of new materials, dyes, and chemical compounds. Its versatility and reactivity with various chemicals make it a valuable asset in the field of chemical research.

Preparation

2-Amino-4,6-dinitrophenol diazotization, and Naphthalen-2-ol coupling.

Standard

Ironing Fastness

Alkali

Acid

ISO

4

InChI:InChI=1/C16H10N4O6/c21-14-6-5-9-3-1-2-4-11(9)15(14)18-17-12-7-10(19(23)24)8-13(16(12)22)20(25)26/h1-8,17,22H/b18-15-

Relevant articles and documents

Divalent azo metal complex and application of divalent azo metal complex in toner

The invention discloses a divalent azo metal complex. A structural formula of the divalent azo metal complex is shown as the following general formula I as shown in the description, wherein M represents a divalent metal atom. The azo metal complex is prepared by a complex reaction of a metal imparting agent and an azo ligand. The divalent azo metal complex substitutes azo chromium to be applied to preparation of toner.