Description

Sodium 4-Amino-1-Naphthalenesulfonate is the sodium salt of a key naphthalene-based intermediate, valued for its role as a versatile building block in organic synthesis. This compound is essential for the production of azo dyes, pigments, and other functional chemicals, offering reliable performance and consistent quality. It is primarily required by manufacturers in the dye and pigment, pharmaceutical, and specialty chemical industries for research and production processes.

Application

• Primary intermediate in the synthesis of acid dyes and azo pigments.
• Key starting material for pharmaceutical active ingredients and fine chemicals.
• Used in research and development of fluorescent probes and biological stains.
• Employed as a corrosion inhibitor in certain industrial formulations.
• Acts as a coupling agent in diazotization reactions for colorant production.
• Utilized in the manufacture of specialty polymers and functional materials.

Basic Information

Product Name	Sodium 4-Amino-1-Naphthalenesulfonate
CAS No.	130-13-2
Molecular Formula	C10H8NNaO3S
Molecular Weight	245.23 g/mol
Synonyms	1-Naphthylamine-4-sulfonic acid sodium salt; 4-Amino-1-naphthalenesulfonic acid sodium salt; Sodium 1-naphthylamine-4-sulfonate; 1,4-Cleve's acid sodium salt; 4-Amino-1-naphthalenesulphonate sodium; 4-Amino-1-naphthalenesulfonic acid sodium salt; Sodium 4-aminonaphthalene-1-sulfonate; 1-Aminonaphthalene-4-sulfonic acid sodium salt
EINECS	204-976-2

Quality Control

Our Sodium 4-Amino-1-Naphthalenesulfonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and consistency. A Certificate of Analysis (COA) detailing all test results is provided with every 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, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light pink crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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