Description

6-Amino-2-Naphthalenesulfonic Acid is a key aromatic sulfonic acid derivative, serving as a vital intermediate in the synthesis of high-value organic compounds. Its molecular structure makes it an essential building block for creating dyes, pigments, and optical brighteners with excellent color fastness and stability. This product is primarily sought after by manufacturers in the dye and pigment, specialty chemical, and pharmaceutical intermediate industries.

Application

• Dye and Pigment Manufacturing: A crucial intermediate for the synthesis of azo dyes, acid dyes, and reactive dyes, providing vibrant and durable colors for textiles, leather, and paper.
• Optical Brightener Production: Used in the manufacture of fluorescent whitening agents (FWAs) for detergents, textiles, and plastics.
• Pharmaceutical Intermediates: Acts as a precursor in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Serves as a versatile starting material for organic synthesis and the development of new functional materials.
• Corrosion Inhibitor Formulation: Used in some industrial water treatment and metalworking fluid formulations.
• Photographic Chemical Synthesis: Employed in the production of certain photographic chemicals and sensitizers.

Basic Information

Product Name	6-Amino-2-Naphthalenesulfonic Acid
CAS No.	93-00-5
Molecular Formula	C₁₀H₉NO₃S
Molecular Weight	223.25 g/mol
Synonyms	2-Amino-6-naphthalenesulfonic acid; 6-Amino-2-naphthalenesulphonic acid; 2-Naphthylamine-6-sulfonic acid; 6-Amino-β-naphthalenesulfonic acid; 6-Amino-2-naphthylsulfonic acid; 2,6-Cleve's acid; 6-Amino-2-naphthalene sulfonic acid; 2-Amino-6-naphthalenesulphonic acid
EINECS	202-209-9

Quality Control

Our 6-Amino-2-Naphthalenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing assay, related substances, and physical characteristics is provided with every shipment to guarantee traceability and compliance.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Off-white to grayish powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Sparingly soluble in water; soluble in alkaline solutions

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