Description

2-Hydroxy-5-[(4,8-Disulfo-2-Naphtyl)Azo]Benzoic Acid Trisodium Salt is a high-purity azo dye intermediate and analytical reagent known for its distinct chromophoric properties. This compound is valued for its role in producing vivid, stable colors and its utility in specialized chemical detection methods. It is primarily required by manufacturers in the dye and pigment industry, as well as by research laboratories for analytical chemistry applications.

Application

• Dye and Pigment Manufacturing: A key intermediate for the synthesis of acid dyes and pigments, particularly for textiles, leather, and paper.
• Analytical Chemistry: Used as a colorimetric reagent and complexometric indicator in various titration and detection assays.
• Biological Staining: Potential application in histological stains for microscopy due to its specific binding properties.
• Ink Formulation: A component in the production of specialized inks requiring specific lightfastness and hue.
• Research & Development: Serves as a building block in organic synthesis for novel chromophores and functional materials.
• pH Indicator: Can be utilized in the development of pH-sensitive indicators and sensors.

Basic Information

Product Name	2-Hydroxy-5-[(4,8-Disulfo-2-Naphtyl)Azo]Benzoic Acid Trisodium Salt
CAS No.	6471-08-5
Molecular Formula	C17H9N2Na3O10S2
Molecular Weight	526.35 g/mol
Synonyms	Acid Orange 12; C.I. 15970; 5-[(4,8-Disulfo-2-naphthyl)azo]salicylic acid trisodium salt; Benzoic acid, 2-hydroxy-5-[(4,8-disulfo-2-naphthalenyl)azo]-, trisodium salt; Trisodium 5-[(4,8-disulfo-2-naphthyl)azo]salicylate; Orange G; Wool Orange G; Lissamine Orange G
EINECS	229-295-8

Quality Control

Our production of 2-Hydroxy-5-[(4,8-Disulfo-2-Naphtyl)Azo]Benzoic Acid Trisodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for industrial and laboratory use. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and sources of heat.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.