Description

Sodium 1-Aminonaphthalene-2-Sulphonate CAS NO 61240-37-7 is a high-purity, water-soluble aromatic sulfonate salt derived from naphthalene. This compound serves as a critical intermediate and coupling agent in the synthesis of dyes, pigments, and specialty chemicals. It is essential for manufacturers in the dyestuff, textile, and fine chemical industries requiring consistent quality and reliable supply for complex synthesis.

Application

• Primary Intermediate for Azo Dyes: A key coupling component in the production of acid, direct, and reactive dyes for textiles and leather.
• Pigment Manufacturing: Used in the synthesis of organic pigments for inks, plastics, and coatings.
• Chemical Synthesis: Acts as a building block for more complex naphthalene-based sulfonates and specialty surfactants.
• Research & Development: Utilized in academic and industrial R&D for developing new chromophores and functional materials.
• Analytical Reagent: Can be employed as a reagent or standard in certain analytical chemistry applications.

Basic Information

Product Name	Sodium 1-Aminonaphthalene-2-Sulphonate
CAS No.	61240-37-7
Molecular Formula	C10H8NNaO3S
Molecular Weight	245.23 g/mol
Synonyms	1-Amino-2-naphthalenesulfonic acid sodium salt; 2-Amino-1-naphthalenesulfonic acid sodium salt; Sodium 2-amino-1-naphthalenesulfonate; 1,2-Cleve's acid sodium salt; 1-Amino-2-naphthalenesulphonate sodium; 2-Naphthylamine-1-sulfonic acid sodium salt; 1-Amino-2-naphthalenesulfonate
EINECS	Contact for details

Quality Control

Our Sodium 1-Aminonaphthalene-2-Sulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your technical 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Clear solution

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