Description

Sodium S-[2-[[[4-[[1-[[(2,4-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]Sulphonyl]Amino]Ethyl] Thiosulphate is a specialized organic intermediate featuring a complex azo and thiosulfate ester structure. This compound matters for its role as a key precursor in the synthesis of high-value, functional dyes and pigments, particularly reactive dyes for textiles. Industrial manufacturers and R&D laboratories in the fine chemical, dye, and pharmaceutical sectors require this high-purity building block to develop products with specific colorfastness and chemical properties.

Application

• Primary intermediate for reactive dye synthesis, especially for cellulose fibers like cotton and viscose.
• Key building block in the production of azo pigments and dyes used in textiles, inks, and coatings.
• Research chemical for developing novel chromophores with enhanced lightfastness and washfastness properties.
• Potential precursor in the synthesis of specialty chemicals for analytical and diagnostic applications.
• Used in photographic chemicals and other light-sensitive material formulations.
• Intermediate for functional polymer modification where colorant or specific reactive groups are required.

Basic Information

Item	Details
Product Name	Sodium S-[2-[[[4-[[1-[[(2,4-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]Sulphonyl]Amino]Ethyl] Thiosulphate
CAS No.	31676-23-0
Molecular Formula	C21H25N4O8S3Na
Molecular Weight	580.62 g/mol
Synonyms	2-[[4-[[1-[(2,4-Dimethoxyphenyl)carbamoyl]-2-oxopropyl]azo]phenyl]sulfonylamino]ethanethiosulfuric acid sodium salt; Sodium 2-({[4-({1-[(2,4-dimethoxyphenyl)carbamoyl]-2-oxopropyl}diazenyl)phenyl]sulfonyl}amino)ethane-1-thiosulfate; Reactive dye intermediate; Azo dye precursor; Thiosulfate ester derivative
EINECS	Contact for details

Quality Control

Our Sodium S-[2-[[[4-[[1-[[(2,4-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]Sulphonyl]Amino]Ethyl] Thiosulphate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in DMF, DMSO; sparingly soluble in water

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