Description

2-Naphthalenesulfonic acid, 4,6-dihydroxy-, coupled with diazotized 4,4'-(cyclohexanediyl)bis[benzenamine], reaction products with benzenesulfonyl chloride, sodium salts is a specialized, high-performance chemical intermediate designed for advanced material synthesis. This compound is valued for its unique structural properties, which enable precise color and functional group integration in demanding applications. It is primarily sought by manufacturers in the dyes and pigments, specialty polymers, and advanced material research sectors for creating products with enhanced stability and performance characteristics.

Application

• Primary Intermediate for High-Performance Dyes and Pigments: Used in the synthesis of azo dyes and complex pigments, particularly for applications requiring excellent lightfastness and thermal stability.
• Functional Additive in Specialty Polymers: Imparts specific ionic or chromophoric properties to polymers for advanced coatings, films, and engineering plastics.
• Research & Development Chemical: Serves as a key building block in organic synthesis for novel materials in photovoltaics, sensors, and electronic applications.
• Textile Chemical Auxiliary: Can be utilized in the production of dye-fixing agents or functional finishes for synthetic fibers.
• Analytical Reagent: Potential use as a standard or reagent in chromatographic analysis and other laboratory procedures.

Basic Information

Product Name	2-Naphthalenesulfonic acid, 4,6-dihydroxy-, coupled with diazotized 4,4'-(cyclohexanediyl)bis[benzenamine], reaction products with benzenesulfonyl chloride, sodium salts
CAS No.	90459-21-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sodium salts of reaction products of 4,6-dihydroxy-2-naphthalenesulfonic acid coupled with diazotized 4,4'-diaminodicyclohexylmethane and benzenesulfonyl chloride; C.I. Direct Yellow 106 (related class); Benzenesulfonyl chloride, reaction products with 4,6-dihydroxy-2-naphthalenesulfonic acid coupled with diazotized 4,4'-methylenebis[cyclohexylamine], sodium salts; Direct dye intermediate 90459-21-5; Azo dye coupling component derivative; 4,4'-(Cyclohexanediyl)bis[benzenamine], diazotized, coupled with 4,6-dihydroxy-2-naphthalenesulfonic acid, reaction products with benzenesulfonyl chloride, sodium salts
EINECS	Contact for details

Quality Control

Our production of this specialty intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including identity confirmation and impurity profiling. A detailed Certificate of Analysis (COA) documenting key specifications such as assay, moisture content, and heavy metal limits is provided with every 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 area 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.

Specification

Item	Specification
Appearance	Brown to dark brown powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90%
Loss on Drying	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (1% in Water)	Clear to slightly hazy solution

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