Description

4,4'-[[2,4-Dihydroxy-5-(Hydroxymethyl)-1,3-Phenylene]Bis(Azo)]Bisnaphthalene-1-Sulphonic Acid is a specialized azo dye intermediate characterized by its complex aromatic structure and multiple functional groups. This compound is valued for its ability to impart color and specific chemical properties in advanced synthesis processes. It is primarily sought by manufacturers in the dye and pigment industries, as well as researchers developing functional materials.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key building block in the synthesis of high-performance, complex azo colorants.
• Textile Dye Manufacturing: Used in the production of dyes for coloring natural and synthetic fibers, offering potential for vibrant hues.
• Specialty Ink Formulation: Incorporated into formulations for inks requiring specific light-fastness or chemical resistance properties.
• Functional Material Research: Investigated in academic and industrial R&D for applications in sensors, optical materials, or as a ligand in metal complexes.
• Laboratory Reagent: Utilized as a standard or reagent in analytical chemistry and color science research.

Basic Information

Item	Details
Product Name	4,4'-[[2,4-Dihydroxy-5-(Hydroxymethyl)-1,3-Phenylene]Bis(Azo)]Bisnaphthalene-1-Sulphonic Acid
CAS No.	25738-39-0
Molecular Formula	C27H18N4O10S2
Molecular Weight	622.58 g/mol
Synonyms	Acid Black 210; C.I. 300310; 1,3-Benzenediol, 5-(hydroxymethyl)-2,4-bis[(4-sulfo-1-naphthalenyl)azo]-; 4,4'-[2,4-Dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)di(1-naphthalenesulfonic acid); 4,4'-[2,4-Dihydroxy-5-hydroxymethyl-m-phenylene]bis[azo]-1-naphthalenesulfonic acid; 4,4'-[2,4-Dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)bis(naphthalene-1-sulfonic acid); Bisazo dye intermediate; Azo dye precursor CAS 25738-39-0
EINECS	Contact for details

Quality Control

Our production of 4,4'-[[2,4-Dihydroxy-5-(Hydroxymethyl)-1,3-Phenylene]Bis(Azo)]Bisnaphthalene-1-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles 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). Keep away from strong oxidizing agents. Due to its complex aromatic structure, it is recommended to handle and store this material in accordance with good laboratory/industrial practices.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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