Description

Sodium 6-Aminonaphthalene-1-Sulphonate is a high-purity, water-soluble aromatic sulfonate salt primarily used as a key intermediate in the synthesis of dyes and pigments. Its value lies in its reactive amino and sulfonate groups, which enable the creation of vibrant, color-fast azo dyes and fluorescent markers. This compound is essential for manufacturers in the dye and pigment industry, as well as for research laboratories developing specialized optical materials and analytical reagents.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial diazo component in the production of acid dyes, direct dyes, and reactive dyes for textiles, leather, and paper.
• Fluorescent Dye Synthesis: Used in the manufacture of naphthalimide-based fluorescent dyes and probes for biological staining and diagnostic applications.
• Optical Brightening Agents (OBAs): Acts as a building block for synthesizing stilbene-based fluorescent whitening agents used in detergents and paper.
• Chemical Research & Development: A valuable reagent for organic synthesis, particularly in creating sulfonated aromatic compounds with specific functional properties.
• Specialty Pigments: Employed in the development of high-performance pigments for inks, coatings, and plastics where specific color and stability are required.

Basic Information

Product Name	Sodium 6-Aminonaphthalene-1-Sulphonate
CAS No.	58306-87-9
Molecular Formula	C₁₀H₈NNaO₃S
Molecular Weight	245.23 g/mol
Synonyms	6-Amino-1-naphthalenesulfonic acid sodium salt; 1-Naphthalenesulfonic acid, 6-amino-, sodium salt; 6-Aminonaphthalene-1-sulfonic acid sodium salt; Sodium 6-amino-1-naphthalenesulfonate; 6-Amino-1-naphthalenesulfonate sodium; 1,6-Cleve's acid sodium salt; 6-Amino-1-naphthol-3-sulfonic acid sodium salt (tautomer); C.I. 56200
EINECS	Contact for details

Quality Control

Our Sodium 6-Aminonaphthalene-1-Sulphonate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. A Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Conforms
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility (1% in Water)	Clear, yellow solution

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