Description

Benzenesulfonic Acid, 4-Amino-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salt is a complex, high-purity synthetic dye intermediate essential for producing vibrant and stable colorants. This compound matters for its role as a key precursor in the synthesis of specialized azo dyes and pigments, offering excellent color strength and compatibility. Industrial manufacturers in the textile, ink, and specialty coatings sectors require this material to develop high-performance color products with consistent batch-to-batch quality.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical building block in the synthesis of high-value, complex azo colorants.
• Textile Dye Manufacturing: Used in the production of dyes for coloring natural and synthetic fibers, prized for color fastness.
• Inkjet and Printing Ink Formulation: A key component in creating specialized inks that require precise hue and stability.
• Industrial Coatings and Paints: Employed in the manufacture of pigments for coatings where durability and color consistency are paramount.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and functional dyes.
• Specialty Chemical Synthesis: Acts as an intermediate in the synthesis of other fine chemicals and optical materials.

Basic Information

Product Name	Benzenesulfonic Acid, 4-Amino-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salt
CAS No.	97675-27-9
Molecular Formula	C30H21N3O11S.2Na
Molecular Weight	Approx. 677.54 g/mol
Synonyms	4-Aminobenzenesulfonic acid, diazotized, coupled with 5,5'-[(5-hydroxy-1,3-phenylene)bis(oxy)]bis[1,3-benzenediol], disodium salt; Azo dye intermediate derived from 4-aminobenzenesulfonic acid and phloroglucinol derivative; Sodium salt of a diazo coupling product; CI 42510 (related class); Phloroglucinol-based azo dye intermediate; Disodium 5-hydroxy-3-[[4-[(2,4,6-trihydroxyphenyl)diazenyl]phenyl]sulfonyl]benzene-1,3-diolate (theoretical); Benzenesulfonic acid, 4-amino-, diazotized, coupled with phloroglucinol derivative
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to rigorous quality testing protocols to ensure it meets the precise specifications required for high-performance colorant synthesis. Each batch is analyzed to confirm identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled 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	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 2.0%
Residue on Ignition (Sulfated Ash)	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Contact for details

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