Description

Sodium p-[(4-Amino-5-Methoxy-o-Tolyl)Azo]Benzenesulphonate is an azo dye intermediate of significant commercial importance. Its primary value lies in its role as a key precursor for synthesizing a range of vibrant and stable dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce high-performance colorants.

Application

• Primary Intermediate for Dye Synthesis: Serves as a crucial building block in the production of acid dyes, direct dyes, and other azo-based colorants.
• Textile Industry: Used in the manufacturing of dyes for coloring natural and synthetic fibers such as wool, silk, nylon, and paper.
• Ink Formulation: Employed in the synthesis of pigments for printing inks, including those used in packaging and publications.
• Leather Dyeing: Acts as an intermediate for dyes used in the leather tanning and finishing process.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo dye chemistry.
• Specialty Chemicals: Potential use in the synthesis of functional dyes for non-textile applications, such as indicators or light-absorbing materials.

Basic Information

Product Name	Sodium p-[(4-Amino-5-Methoxy-o-Tolyl)Azo]Benzenesulphonate
CAS No.	3626-35-5
Molecular Formula	C14H13N4NaO4S
Molecular Weight	356.33 g/mol
Synonyms	Sodium 4-[(4-Amino-5-methoxy-2-methylphenyl)azo]benzenesulfonate; Benzenesulfonic acid, 4-[(4-amino-5-methoxy-2-methylphenyl)azo]-, sodium salt; C.I. 37155; Azoic Diazo Component 107; Sodium 4-[(4-Amino-5-methoxy-o-tolyl)azo]benzenesulphonate; p-[(4-Amino-5-methoxy-o-tolyl)azo]benzenesulfonic acid sodium salt; 4-[(4-Amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium p-[(4-Amino-5-Methoxy-o-Tolyl)Azo]Benzenesulphonate is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and performance as a dye intermediate. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility	Soluble in water
Heavy Metals (as Pb)	≤ 20 ppm

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