Description

6-Amino-4-Hydroxy-5-[[2-[[(Phenylsulphonyl)Amino]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid, Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its core value lies in its role as a key precursor for synthesizing high-performance, complex dyes and pigments, particularly those requiring specific shades and enhanced fastness properties. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced colorants.

Application

• Primary Intermediate for Reactive Dyes: A critical building block in the synthesis of high-grade reactive dyes for cotton and cellulose fibers.
• Specialty Pigment Production: Used in the manufacture of complex organic pigments for inks, coatings, and plastics where specific color characteristics are required.
• Textile Dyeing: Serves as a key component in formulating dyes that offer excellent wash and light fastness on textile substrates.
• Research & Development: Utilized in chemical R&D laboratories for developing novel chromophores and studying azo dye chemistry.
• Analytical Chemistry: Can be employed as a reagent or standard in certain colorimetric analytical methods.

Basic Information

Item	Detail
Product Name	6-Amino-4-Hydroxy-5-[[2-[[(Phenylsulphonyl)Amino]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid, Sodium Salt
CAS No.	83027-49-0
Molecular Formula	C22H16N4O8S3Na
Molecular Weight	599.57 g/mol
Synonyms	6-Amino-4-hydroxy-5-{[2-({[(phenylsulfonyl)amino]sulfonyl}phenyl)diazenyl]naphthalene-2-sulfonic acid sodium salt; Sodium 6-amino-4-hydroxy-5-{[2-({[(phenylsulfonyl)amino]sulfonyl}phenyl)diazenyl]naphthalene-2-sulfonate; C.I. Azoic Coupling Component; Azo dye intermediate 83027-49-0; 5-[[2-[[(Phenylsulfonyl)amino]sulfonyl]phenyl]azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid sodium salt; 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[[2-[[(phenylsulfonyl)amino]sulfonyl]phenyl]azo]-, sodium salt; Reactive dye intermediate
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment, ensuring full traceability and compliance with customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Clear solution

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