Description

8-Amino-5-(Naphthylazo)Naphthalene-1-Sulphonic Acid is a specialized azo dye intermediate characterized by its naphthalene-based structure and sulphonic acid group. This compound is valued for its ability to impart color and functional properties in advanced synthetic processes. It is primarily required by manufacturers in the dye and pigment, textile, and specialty chemical industries for producing high-performance colorants and functional materials.

Application

• Key intermediate for the synthesis of azo dyes and pigments, particularly those requiring red to violet hues.
• Used in the manufacturing of textile dyes for coloring natural and synthetic fibers.
• Potential component in the production of functional dyes for inks, coatings, and plastics.
• Intermediate in research and development of specialty chemicals with chromophoric properties.
• May serve as a starting material for analytical reagents or biological stains.
• Used in the synthesis of complex colorants for non-textile applications such as paper or leather.

Basic Information

Product Name	8-Amino-5-(Naphthylazo)Naphthalene-1-Sulphonic Acid
CAS No.	75627-24-6
Molecular Formula	C₂₀H₁₅N₃O₃S
Molecular Weight	377.42 g/mol
Synonyms	8-Amino-5-(naphthalen-1-yldiazenyl)naphthalene-1-sulfonic acid; 1-Naphthalenesulfonic acid, 8-amino-5-[(1-naphthalenyl)azo]-; Acid Red Dye Intermediate; Azo Naphthalene Sulfonic Acid Derivative; 1-Naphthylazo-8-aminonaphthalene-1-sulfonic acid; 5-(1-Naphthylazo)-8-amino-1-naphthalenesulfonic acid; Naphthyl Azo Aminonaphthalene Sulfonate
EINECS	Contact for details

Quality Control

Our production of 8-Amino-5-(Naphthylazo)Naphthalene-1-Sulphonic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure consistency, purity, and compliance with agreed specifications. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment to guarantee traceability and quality assurance for our global B2B clients.

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	Dark red to 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.