Description

4-Chloro-3-[[4-[(Sulfomethyl)Amino]Phenyl]Azo]Benzenesulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate and functional chemical. This compound is valued for its precise chemical structure, which provides excellent reactivity and chromophoric properties for advanced synthesis. It is primarily utilized by manufacturers in the dye and pigment, specialty chemical, and research and development sectors for creating high-performance colorants and functional molecules.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for textile coloring, particularly for cotton and cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of specialized pigments requiring specific solubility and bonding characteristics.
• Functional Dye Synthesis: Serves as a precursor for dyes used in biological staining, ink-jet inks, and other high-tech applications.
• Chemical Research & Development: An important reagent for developing novel chromophores and studying azo coupling reactions in academic and industrial R&D.
• Analytical Chemistry: Can be employed as a standard or reagent in colorimetric analysis and detection methods.

Basic Information

Product Name	4-Chloro-3-[[4-[(Sulfomethyl)Amino]Phenyl]Azo]Benzenesulfonic Acid Disodium Salt
CAS No.	67815-65-0
Molecular Formula	C13H10ClN3Na2O6S2
Molecular Weight	465.79 g/mol
Synonyms	4-Chloro-3-((4-((sulfomethyl)amino)phenyl)azo)benzenesulfonic acid disodium salt; Benzenesulfonic acid, 4-chloro-3-[[4-[(sulfomethyl)amino]phenyl]azo]-, disodium salt; C.I. Reactive Yellow 42 intermediate; Reactive Yellow 42 precursor; Azo dye intermediate 67815-65-0; 3-[(4-(Sulfomethylamino)phenyl)azo]-4-chlorobenzenesulfonic acid disodium salt; Disodium 4-chloro-3-((4-(sulfomethylamino)phenyl)diazenyl)benzenesulfonate
EINECS	Contact for details

Quality Control

Our production of 4-Chloro-3-[[4-[(Sulfomethyl)Amino]Phenyl]Azo]Benzenesulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all critical parameters are available upon request to support your quality assurance processes.

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 strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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