3567-66-6

Basic information

• Product Name: AZOFUCHSIN
• Synonyms: 7-naphthalenedisulfonicacid,4-amino-5-hydroxy-6-phenylazo-disodiumsalt;7-naphthalenedisulfonicacid,5-amino-4-hydroxy-3-(phenylazo)-disodiumsalt;abcolazofuchsine;acetylredb;acidfuchsinfastb;acidred2a;acidredb;amacidfuchsine4b
• CAS NO: 3567-66-6
• Molecular Formula: C₁₆H₁₀N₃O₇S₂*3Na
• Molecular Weight: 467.38
• EINECS: 222-656-9
• Product Categories: Dyestuff;Organics
• Mol File: 3567-66-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: solid
• Density: g/cm³
• Refractive Index: 1.747
• Water Solubility: 54.45g/L at 26℃
• Stability: Stable. Incompatible with strong oxidizing agents.
• CAS DataBase Reference: AZOFUCHSIN(CAS DataBase Reference)
• NIST Chemistry Reference: AZOFUCHSIN(3567-66-6)
• EPA Substance Registry System: AZOFUCHSIN(3567-66-6)

Safety Data

• RTECS: QJ6197000
• Hazardous Substances Data: 3567-66-6(Hazardous Substances Data)

Usage

Description

AZOFUCHSIN is a red-colored chemical compound that is soluble in water and slightly soluble in ethanol. It exhibits various color changes when interacting with different chemicals, such as strong sulfuric acid, nitric acid, hydrochloric acid, and sodium hydroxide. It is a solid substance with specific properties that make it suitable for various applications.

Uses

Used in Textile Industry:
AZOFUCHSIN is used as a dye for textiles due to its ability to produce a vibrant red color. It is known for its light fastness, soaping fastness, perspiration fastness, and oxygen bleaching fastness, making it a reliable choice for coloring fabrics.
Used in Analytical Chemistry:
AZOFUCHSIN is used as a reagent in analytical chemistry for the detection and identification of certain compounds. Its color-changing properties allow for the differentiation of various substances when mixed with specific chemicals.
Used in Medical Research:
AZOFUCHSIN can be used in medical research as a staining agent for histological and cytological studies. Its color intensity and stability make it suitable for visualizing and identifying specific structures within biological samples.
Used in Cosmetic Industry:
AZOFUCHSIN may be used as a colorant in the cosmetic industry for products such as lipsticks, blushes, and other makeup items. Its vibrant red hue and stability under various conditions make it an attractive option for these applications.
Standard:
The fastness properties of AZOFUCHSIN are measured using ISO and AATCC standards, which provide a standardized method for evaluating the performance of dyes and colorants. The fastness ratings for AZOFUCHSIN are as follows:
Light Fastness: ISO 2, AATCC 2-3
Soaping Fastness: ISO 2-3, AATCC 2-3
Perspiration Fastness: ISO 2, AATCC 1
Oxygen Bleaching: ISO 2, AATCC 1
Fastness to Seawater: ISO 2-3, AATCC 4
These ratings indicate the level of resistance to fading and staining when exposed to different conditions, such as light, soap, perspiration, oxygen bleaching, and seawater.

Preparation

aniline diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in alkaline conditions coupled.

Flammability and Explosibility

Nonflammable

Standard

Light Fastness

Fading

Stain

ISO

2

AATCC

2-3

InChI:InChI=1/C16H13N3O7S2/c17-12-8-11(27(21,22)23)6-9-7-13(28(24,25)26)15(16(20)14(9)12)19-18-10-4-2-1-3-5-10/h1-8,18H,17H2,(H,21,22,23)(H,24,25,26)/b19-15-

Upstream product

• 90-20-0 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid 
• 62-53-3 aniline 

Relevant articles and documents

Spectrophotometric Determination of Aromatic Amines by the Diazotization-Coupling Technique with 8-Amino-1-hydroxynaphthalene-3,6-disulfonic Acid and N-(1-Naphthyl)ethylenediamine as the Coupling Agents

A comprehensive study is made of the application of the diazotization-coupling spectrophotometric technique to the determination of diverse aromatic amines, using H-acid (8-amino-1-hydroxynaphthalene-3,6-disulfonic acid) and N-(1-naphthyl)ethylenediamine (also called N-(1-naphthalenyl)-1,2-ethanediamine or N-na) as the coupling agents.The methods were tested successfully on halogenate anilines, 2,4-dichloroaniline, nitroanilines, methylanilines, aminobenzoic acids, aminobenzenesulfonic acids, sulfanilamide, and certain other substituted anilines.The methods are not rec ommended for phenylenediamines and aminophenols, which produce little or no color.The aromatic amines containing negative groups tend to couple and produce colors more readily than aromatic amines not containing such groups.The amount of reagent and time required for full color development is less for aromatic amines containing negative groups, specially for the N-na method.Both methods are about equal in accuracy but the N-na mathod is on the average about 1.6 times more sensitive than the H-acid method.