Description

Benzenesulfonic Acid, 4-Amino-, Diazotized, Coupled With Resorcinol, Reaction Products With Formaldehyde is a specialized synthetic chemical intermediate, primarily valued for its role as a key precursor in the production of high-performance dyes and pigments. This compound is engineered to deliver consistent reactivity and color properties, which are critical for achieving precise hues and superior fastness in the final product. It is essential for manufacturers in the textile, ink, and specialty coatings industries who require reliable intermediates for creating azo dyes and functional colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial coupling component in the synthesis of a wide range of orange, red, and brown azo colorants for textiles and plastics.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, including cotton, wool, and nylon, offering good wash and light fastness.
• Ink Formulation: Employed in the manufacture of pigments for printing inks, including those used in packaging and publications.
• Industrial Coatings: Functions as a colorant intermediate in paints and coatings for automotive, industrial, and decorative applications.
• Paper Coloring: Utilized in the production of dyes for specialty paper and paperboard.
• Research & Development: Acts as a building block in chemical research for developing novel chromophores and functional materials.

Basic Information

Product Name	Benzenesulfonic Acid, 4-Amino-, Diazotized, Coupled With Resorcinol, Reaction Products With Formaldehyde
CAS No.	85828-72-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	4-Aminobenzenesulfonic acid diazotized, coupled with resorcinol, reaction products with formaldehyde; C.I. Azoic Coupling Component; Azoic Coupling Component; Diazotized 4-aminobenzenesulfonic acid-resorcinol-formaldehyde condensate; Dye intermediate for azo pigments.
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and performance reliability. While specific purity grades are tailored to application needs, all material is characterized to confirm its identity and reactivity profile. A Certificate of Analysis (COA) detailing relevant specifications is provided with each shipment 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). This material is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown powder or solid
Identification (IR)	Conforms to structure
Assay (Active Component)	Contact for details
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Solubility	Soluble in alkaline aqueous solutions

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