Description

5-[(4-Amino-5-Methoxy-o-Tolyl)Azo]-2-Methoxybenzenesulphonic Acid is a specialized azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance dyes and pigments with excellent color properties and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to produce vibrant and durable colorants.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of complex azo dyes, particularly for textile fibers like cotton, wool, and nylon.
• Pigment Manufacturing: Used in the production of organic pigments for inks, plastics, and coatings, offering good lightfastness and thermal stability.
• Specialty Colorants: Employed in the formulation of specialty dyes for leather, paper, and other industrial applications.
• Research & Development: Serves as a crucial reagent in chemical R&D for developing novel chromophores and functional dyes.
• Analytical Chemistry: Can be utilized as a staining agent or a colorimetric indicator in specific analytical procedures.

Basic Information

Product Name	5-[(4-Amino-5-Methoxy-o-Tolyl)Azo]-2-Methoxybenzenesulphonic Acid
CAS No.	63216-83-1
Molecular Formula	C16H19N3O5S
Molecular Weight	365.41 g/mol
Synonyms	2-Methoxy-5-[(4-amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid; Benzenesulfonic acid, 2-methoxy-5-[(4-amino-5-methoxy-2-methylphenyl)azo]-; C.I. Azoic Coupling Component; Azo dye intermediate 63216-83-1; 4-Amino-5-methoxy-o-tolyl azo methoxybenzenesulphonic acid; 5-[(4-Amino-5-methoxy-2-methylphenyl)diazenyl]-2-methoxybenzenesulfonic acid
EINECS	Contact for details

Quality Control

Our 5-[(4-Amino-5-Methoxy-o-Tolyl)Azo]-2-Methoxybenzenesulphonic Acid is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance as a dye intermediate. Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics 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 (15-25°C). Keep away from strong acids and incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, containers should be amber-colored or stored in dark conditions.

Specification

Item	Specification
Appearance	Brown to reddish-brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline water; sparingly soluble in organic solvents

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