Description

3,3'-Methylenebis[6-[(2,4-Dihydroxyphenyl)Azo]Benzoic Acid Sodium] Salt is a high-purity, water-soluble azo dye intermediate with significant commercial importance. This compound is valued for its role in synthesizing specialized dyes and pigments, offering excellent color properties and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloration.
• Key component in the production of specialty inks for printing and packaging applications.
• Used in the formulation of colorants for plastics and polymers to achieve specific hues.
• Employed in research and development of novel chromophores for analytical and sensor technologies.
• Potential use in the manufacture of functional dyes for non-textile applications, including optical media.

Basic Information

Product Name	3,3'-Methylenebis[6-[(2,4-Dihydroxyphenyl)Azo]Benzoic Acid Sodium] Salt
CAS No.	63589-40-2
Molecular Formula	C34H22N4Na2O10
Molecular Weight	708.55 g/mol
Synonyms	Sodium 3,3'-methylenebis[6-[(2,4-dihydroxyphenyl)azo]benzoate]; Benzoic acid, 3,3'-methylenebis[6-[(2,4-dihydroxyphenyl)azo]-, disodium salt; C.I. 27290; Disodium 3,3'-methylenebis(6-[(2,4-dihydroxyphenyl)azo]benzoate); Azo dye intermediate 63589-40-2; Bis-azo dye sodium salt
EINECS	Contact for details

Quality Control

Our production of 3,3'-Methylenebis[6-[(2,4-Dihydroxyphenyl)Azo]Benzoic Acid Sodium] Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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 each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm

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