Description

Sodium m-[[4-[(4-Hydroxy-m-Tolyl)Azo]-3-Methoxyphenyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate, also known as a disazo compound, valued for its precise chemical structure and consistent performance in demanding synthesis processes. Its primary commercial value lies in its role as a critical building block for producing specialized dyes and pigments, where color strength and stability are paramount. This product is essential for manufacturers in the textile, ink, and specialty coatings industries seeking reliable intermediates for high-quality colorant production.

Application

• Primary Intermediate for Dyes & Pigments: Key precursor in the synthesis of specific azo dyes for textiles, leather, and paper.
• Specialty Ink Formulations: Used in manufacturing colorants for inks requiring specific hue and lightfastness properties.
• Industrial Coatings: Serves as a colorant intermediate for coatings applied to plastics, metals, and other substrates.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying azo dye chemistry.
• Functional Material Synthesis: Potential use in creating materials for non-linear optics or as a ligand in metal-complex dyes.

Basic Information

Product Name	Sodium m-[[4-[(4-Hydroxy-m-Tolyl)Azo]-3-Methoxyphenyl]Azo]Benzenesulphonate
CAS No.	18037-63-3
Molecular Formula	C26H20N4NaO5S
Molecular Weight	523.52 g/mol
Synonyms	Sodium 3-[[4-[(4-hydroxy-3-methylphenyl)azo]-3-methoxyphenyl]azo]benzenesulphonate; Benzenesulfonic acid, 3-[[4-[(4-hydroxy-3-methylphenyl)azo]-3-methoxyphenyl]azo]-, sodium salt; m-[[4-[(4-Hydroxy-m-Tolyl)Azo]-3-Methoxyphenyl]Azo]Benzenesulphonic Acid Sodium Salt; Disazo dye intermediate; Azo dye precursor; C.I. Pigment Intermediate; Sodium salt of an azo sulfonic acid.
EINECS	Contact for details

Quality Control

Our production of Sodium m-[[4-[(4-Hydroxy-m-Tolyl)Azo]-3-Methoxyphenyl]Azo]Benzenesulphonate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including HPLC for purity, spectrophotometry for color value, and elemental analysis. A detailed Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The product is light-sensitive (store away from light) as indicated by its chemical properties.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (Area Percent)
Loss on Drying	≤ 2.0%
Sulfated Ash	Reported on COA
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
Solubility	Soluble in water; sparingly soluble in organic solvents

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