Description

m-[(3-Amino-4-Hydroxyphenyl)Azo]Benzenesulphonic Acid is a specialized azo dye intermediate with a distinct molecular structure featuring both amino and hydroxyl functional groups. This compound is valued for its role as a key precursor in the synthesis of high-performance, colorfast dyes and pigments. It is primarily required by manufacturers in the textile, leather, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial building block in the synthesis of acid dyes and direct dyes for textiles like wool, silk, and nylon.
• Leather Dyeing: Used in the formulation of dyes for coloring leather goods, providing good penetration and fastness.
• Paper Coloring: Employed in the production of dyes for specialty papers and packaging materials.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo coupling reactions.
• Specialty Pigments: Can be used in the synthesis of pigments for plastics and coatings where specific color properties are needed.

Basic Information

Product Name	m-[(3-Amino-4-Hydroxyphenyl)Azo]Benzenesulphonic Acid
CAS No.	94086-87-0
Molecular Formula	C12H11N3O4S
Molecular Weight	293.30 g/mol
Synonyms	3-[(3-Amino-4-hydroxyphenyl)azo]benzenesulfonic acid; Benzenesulfonic acid, m-[(3-amino-4-hydroxyphenyl)azo]-; 4-Amino-3-(3-sulfophenylazo)phenol; m-(3-Amino-4-hydroxy-phenylazo)-benzenesulfonic acid; Acid Orange 86 intermediate; Azo dye intermediate 94086-87-0; 3-Amino-4-hydroxyazobenzene-3'-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of m-[(3-Amino-4-Hydroxyphenyl)Azo]Benzenesulphonic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for industrial applications. Each lot is analyzed against comprehensive specifications, including identity confirmation, assay, and impurity profile. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown powder
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.