Description

6-[(4-Amino-m-Tolyl)Azo]Toluene-3-Sulphonic Acid is an important azo dye intermediate and fine chemical building block. Its value lies in its role as a versatile precursor for synthesizing a range of dyes and pigments, particularly those requiring specific color properties and structural stability. This compound is essential for manufacturers in the dyestuff, textile, ink, and specialty chemical industries seeking to produce high-performance colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key coupling component in the synthesis of acid, direct, and reactive dyes.
• Textile Dyeing & Printing: Used in the production of dyes for coloring natural and synthetic fibers like wool, silk, and nylon.
• Ink Manufacturing: A precursor for pigments used in printing inks, including those for packaging and publications.
• Leather Coloring: Employed in the formulation of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the production of dyes for specialty paper products.
• Research & Development: Acts as a chemical reagent in organic synthesis and material science research for novel chromophores.

Basic Information

Product Name	6-[(4-Amino-m-Tolyl)Azo]Toluene-3-Sulphonic Acid
CAS No.	120-68-3
Molecular Formula	C14H15N3O3S
Molecular Weight	305.35 g/mol
Synonyms	4-Amino-2',3-dimethylazobenzene-4'-sulfonic acid; 6-[(4-Amino-3-methylphenyl)azo]-3-methylbenzenesulfonic acid; 4-Amino-2',3-dimethyl-4-sulfoazobenzene; C.I. 37120; Azobenzene-4-sulfonic acid, 4-amino-2',3-dimethyl-; 3-Methyl-6-[(4-amino-3-methylphenyl)azo]benzenesulfonic acid; 4-Amino-2',3-dimethylazobenzene-4'-sulphonic acid
EINECS	204-416-5

Quality Control

Our production of 6-[(4-Amino-m-Tolyl)Azo]Toluene-3-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, composition, and performance. A Certificate of Analysis (COA) detailing key parameters is provided with each shipment to guarantee traceability and compliance with your specifications.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Brownish-red to dark brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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