Description

Trisodium 4-[[1-Hydroxy-8-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-3,6-Disulphonato-2-Naphthyl]Azo]Benzoate CAS NO 93803-32-8 is a high-purity, water-soluble azo dye intermediate characterized by its multi-sulfonated, naphthalene-based structure. This compound is valued for its ability to impart color and functional properties in advanced synthetic processes, offering excellent batch-to-batch consistency for industrial applications. It is primarily sought by manufacturers in the specialty dyes and pigments, textile chemicals, and advanced material research sectors for producing vivid, stable colorants.

Application

• Primary Intermediate for Reactive and Acid Dyes: A key building block in the synthesis of high-performance dyes for textile fibers like wool, silk, and nylon.
• Specialty Pigment Manufacturing: Used in the production of pigments for inks, coatings, and plastics requiring specific color fastness and solubility properties.
• Laboratory Research & Development: Serves as a precise chemical reagent for developing new chromophores and studying azo dye chemistry and photostability.
• Functional Material Synthesis: Potential use in creating colored polymers or materials where the sulfonate groups aid in solubility and integration.
• Analytical Chemistry: May be employed as a standard or tracer in chromatographic methods and quality control protocols for dye analysis.

Basic Information

Product Name	Trisodium 4-[[1-Hydroxy-8-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-3,6-Disulphonato-2-Naphthyl]Azo]Benzoate
CAS No.	93803-32-8
Molecular Formula	C26H19N3Na3O12S3
Molecular Weight	~749.58 g/mol
Synonyms	Benzoic acid, 4-[[1-hydroxy-8-[[1-oxo-3-(phenylsulfonyl)propyl]amino]-3,6-disulfo-2-naphthalenyl]azo]-, trisodium salt; C.I. Acid Orange 156; Trisodium 4-[(1-hydroxy-8-{[1-oxo-3-(phenylsulfonyl)propyl]amino}-3,6-disulfo-2-naphthyl)azo]benzoate; Acid Orange 156; Azo dye intermediate 93803-32-8; 4-[(8-Acetylamino-1-hydroxy-3,6-disulfo-2-naphthyl)azo]benzoic acid trisodium salt (related structure); 1-Naphthalenesulfonic acid, 8-(acetylamino)-1-hydroxy-3,6-disulfo-2-[(4-carboxyphenyl)azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of Trisodium 4-[[1-Hydroxy-8-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-3,6-Disulphonato-2-Naphthyl]Azo]Benzoate adheres to stringent quality management protocols to ensure high purity, consistent performance, and reliable supply for industrial applications. Each batch is analyzed using advanced techniques like HPLC and spectrophotometry to verify critical parameters. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to protect from moisture. Store away from incompatible materials.

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.