Description

5-Amino-6-Ethoxynaphthalene-2-Sulphonic Acid is a high-purity, specialized naphthalene derivative serving as a critical intermediate in advanced organic synthesis. Its molecular structure makes it an essential building block for creating complex dyes, pigments, and functional materials with specific optical and chemical properties. This compound is primarily sought by manufacturers in the fine chemical, specialty dye, and advanced material research sectors.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of high-value azo dyes, acid dyes, and reactive dyes for textiles, leather, and paper.
• Functional Material Synthesis: Used in the production of optical brighteners, fluorescent whitening agents, and other specialty chemicals.
• Pharmaceutical Intermediates: Serves as a building block in the research and development of certain active pharmaceutical ingredients (APIs).
• Research & Development: Employed in academic and industrial R&D for exploring novel organic compounds and polymerization processes.
• Chemical Synthesis: Acts as a versatile intermediate for introducing specific functional groups into more complex molecular architectures.

Basic Information

Product Name	5-Amino-6-Ethoxynaphthalene-2-Sulphonic Acid
CAS No.	118-28-5
Molecular Formula	C₁₂H₁₃NO₄S
Molecular Weight	267.30 g/mol
Synonyms	6-Ethoxy-5-aminonaphthalene-2-sulfonic acid; 5-Amino-6-ethoxynaphthalene-2-sulfonic acid; 2-Naphthalenesulfonic acid, 5-amino-6-ethoxy-; 6-Ethoxy-5-naphthalenamine-2-sulfonic acid; 5-Amino-6-ethoxy-2-naphthalenesulfonic acid; 1-Amino-2-ethoxy-6-naphthalenesulfonic acid; 118-28-5; 6-Ethoxy-5-amino-2-naphthalenesulfonic acid
EINECS	204-245-4

Quality Control

Our 5-Amino-6-Ethoxynaphthalene-2-Sulphonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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 and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.