Description

Sodium 5-[(4-Amino-5-Methoxy-o-Tolyl)Azo]-2-Methoxybenzenesulphonate is a synthetic azo compound primarily valued as a versatile dye intermediate and specialty chemical. Its molecular structure provides excellent chromophoric properties, making it a critical precursor for producing high-performance pigments and colorants. This product is essential for manufacturers in the textile, ink, and specialty coatings industries seeking consistent quality and reliable supply for their color formulation processes.

Application

• Dye and Pigment Intermediate: A key building block for synthesizing azo dyes and pigments used in textile coloring.
• Textile Industry: Used in the production of dyes for coloring natural and synthetic fibers, including cotton and polyester blends.
• Ink Manufacturing: Serves as a colorant precursor in the formulation of printing inks for packaging and publications.
• Specialty Coatings: Employed in the synthesis of pigments for industrial paints and surface coatings requiring specific color fastness.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo coupling reactions.
• Analytical Reagents: Can be used as a standard or reagent in specific colorimetric analytical methods.

Basic Information

Product Name	Sodium 5-[(4-Amino-5-Methoxy-o-Tolyl)Azo]-2-Methoxybenzenesulphonate
CAS No.	1937-40-2
Molecular Formula	C16H17N4NaO5S
Molecular Weight	400.38 g/mol
Synonyms	5-[(4-Amino-5-methoxy-2-methylphenyl)azo]-2-methoxybenzenesulfonic acid sodium salt; Sodium 5-[(4-amino-5-methoxy-o-tolyl)azo]-2-methoxybenzenesulfonate; C.I. 37155; Benzenesulfonic acid, 5-[(4-amino-5-methoxy-2-methylphenyl)azo]-2-methoxy-, sodium salt; Azo dye intermediate 1937-40-2
EINECS	217-718-5

Quality Control

Our Sodium 5-[(4-Amino-5-Methoxy-o-Tolyl)Azo]-2-Methoxybenzenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance for your production needs.

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 and incompatible materials. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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