Description

8-Amino-5-[(p-Aminophenyl)Azo]Naphthalene-2-Sulphonic Acid is a high-purity azo dye intermediate characterized by its distinct chemical structure. This compound is critical for synthesizing a range of vivid and stable dyes and pigments, offering excellent color fastness properties. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Key component in the production of inks for printing and packaging applications.
• Used in the manufacture of colorants for plastics and synthetic fibers.
• Employed as a chemical precursor in research and development of novel organic dyes.
• Potential use in the formulation of specialized biological stains for laboratory analysis.
• Intermediate for creating high-performance pigments with enhanced weather resistance.

Basic Information

Product Name	8-Amino-5-[(p-Aminophenyl)Azo]Naphthalene-2-Sulphonic Acid
CAS No.	85-67-6
Molecular Formula	C16H15N5O3S
Molecular Weight	357.39 g/mol
Synonyms	8-Amino-5-[(4-aminophenyl)azo]naphthalene-2-sulfonic acid; 5-[(4-Aminophenyl)azo]-8-amino-2-naphthalenesulfonic acid; 1-Amino-4-[(8-amino-7-sulfo-2-naphthyl)azo]benzene; C.I. 37190; Acid Brown 248; Azoic Diazo Component 113; 4-Amino-4'-(8-amino-7-sulfo-2-naphthylazo)azobenzene
EINECS	201-623-7

Quality Control

Our production of 8-Amino-5-[(p-Aminophenyl)Azo]Naphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing specific batch results are provided to guarantee supply reliability and traceability for your manufacturing processes.

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. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Ash Content	≤ 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.