63251-40-1

Basic information

• Product Name: 2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid
• Synonyms: 2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid;2-(4-Aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulfonic acid
• CAS NO: 63251-40-1
• Molecular Formula: C₁₆H₁₂N₄O₆S₂
• Molecular Weight: 420.41968
• EINECS: 264-047-0
• Mol File: 63251-40-1.mol
• Article Data: 1

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.84g/cm³
• Refractive Index: 1.819
• CAS DataBase Reference: 2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid(63251-40-1)
• EPA Substance Registry System: 2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid(63251-40-1)

Safety Data

• Hazardous Substances Data: 63251-40-1(Hazardous Substances Data)

Usage

General Description

2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid, also known as Naphthol AS-BS, is a chemical compound commonly used as a dye in the textile industry. It has a bright yellow color and is water-soluble, making it ideal for dyeing fabrics. 2-(4-aminophenyl)-2H-naphtho[1,2-d]triazole-6,8-disulphonic acid is also used in medical research as a fluorescent marker for biological molecules, and in biochemical assays to detect the presence of specific substances. Additionally, it has been studied for its potential antioxidant and anti-inflammatory properties, showing promise for potential therapeutic applications. However, its use should be carefully regulated due to its potential toxicity and environmental impact.

InChI:InChI=1/C16H12N4O6S2/c17-9-1-3-10(4-2-9)20-18-14-6-5-12-13(16(14)19-20)7-11(27(21,22)23)8-15(12)28(24,25)26/h1-8H,17H2,(H,21,22,23)(H,24,25,26)

Upstream product

• 14368-49-1 p-nitrobenzenediazonium 
• 118-33-2 6-amino-naphthalene-1,3-disulfonic acid 

Relevant articles and documents

AZO COMPOUND, AND DYE-CONTAINING POLARIZING FILM COMPRISING THE SAME

Disclosed is an azo compound represented by the formula (1) or (2) or a salt thereof. The azo compound or the salt thereof has an excellent light-polarizing property, and is extremely useful as a dichroic dye for use in a polarizing plate that shows less color leakage in a visible light range or a polarizing plate for a liquid crystal projector comprising the aforementioned polarizing plate. (1) (2) wherein represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, a sulfonate group or a carboxyl group; R2 to R5 independently represent a hydrogen atom, a lower alkyl group, a lower alkoxy group or an acetylamino group; X represents a benzoylamino group which may have a substituent, a phenylamino group which may have a substituent, a phenylazo group which may have a substituent, or a naphthotriazole group which may have a substituent; m represents a numeral number of 1 or 2; and n represents a numeral number of 0 or 1.