Description

Disodium 4-[[4-[(Sulphonatomethyl)Amino]Phenyl]Azo]Benzenesulphonate is a high-purity, water-soluble azo dye intermediate characterized by its excellent chromophore properties and stability. This compound is essential for manufacturers requiring precise color development and consistent batch-to-batch performance in demanding industrial processes. It is primarily utilized by producers of dyes, pigments, and specialty chemicals for applications in textiles, inks, and analytical reagents.

Application

• Primary intermediate in the synthesis of acid dyes and direct dyes for textile fibers.
• Key chromophore component for manufacturing high-performance pigments and colorants.
• Used in the formulation of specialized inks, including those for packaging and security printing.
• Acts as a reagent or standard in analytical chemistry for colorimetric assays and research.
• Potential use in the development of light-harvesting materials and optoelectronic devices.
• Employed in laboratory settings for teaching and research involving azo compound chemistry.

Basic Information

Product Name	Disodium 4-[[4-[(Sulphonatomethyl)Amino]Phenyl]Azo]Benzenesulphonate
CAS No.	66104-43-6
Molecular Formula	C14H12N4Na2O6S2
Molecular Weight	450.37 g/mol
Synonyms	Disodium 4-[(4-[(sulfomethyl)amino]phenyl)azo]benzenesulfonate; 4-[[4-[(Sulfomethyl)amino]phenyl]azo]benzenesulfonic acid disodium salt; Acid Yellow 17 intermediate; C.I. 18965; Benzenesulfonic acid, 4-[[4-[(sulfomethyl)amino]phenyl]azo]-, disodium salt; Azo dye intermediate 66104-43-6; Disodium 4-[(E)-[4-[(sulfomethyl)amino]phenyl]diazenyl]benzenesulfonate
EINECS	Contact for details

Quality Control

Our Disodium 4-[[4-[(Sulphonatomethyl)Amino]Phenyl]Azo]Benzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards for industrial use. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
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.