Description

2-Naphthylamine-8-Sulfonic Acid is a high-purity aromatic sulfonic acid derivative, serving as a critical intermediate in the synthesis of specialized dyes and pigments. Its value lies in its unique molecular structure, which provides the necessary chromophore and auxochrome groups for producing vivid, colorfast azo dyes. This compound is essential for manufacturers in the dye and pigment industry, as well as for research institutions developing advanced organic materials and analytical reagents.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of acid dyes, direct dyes, and reactive dyes used for textiles, leather, and paper.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for inks, plastics, and coatings.
• Chemical Research & Synthesis: Serves as a versatile starting material or coupling component in organic synthesis for novel compounds.
• Analytical Reagents: Can be utilized in the preparation of reagents for analytical chemistry and biochemical assays.
• Specialty Chemical Production: Acts as an intermediate for other fine chemicals, including pharmaceuticals and agrochemicals, though final applications depend on further derivatization.

Basic Information

Product Name	2-Naphthylamine-8-Sulfonic Acid
CAS No.	86-60-2
Molecular Formula	C₁₀H₉NO₃S
Molecular Weight	223.25 g/mol
Synonyms	8-Amino-2-naphthalenesulfonic Acid; 2-Amino-8-naphthalenesulfonic Acid; 8-Amino-2-naphthylsulfonic Acid; 2-Naphthylamine-8-sulfonic Acid; Peri Acid; 1-Aminonaphthalene-7-sulfonic Acid; 7-Amino-1-naphthalenesulfonic Acid; 1-Naphthylamine-7-sulfonic Acid
EINECS	201-684-8

Quality Control

Our 2-Naphthylamine-8-Sulfonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high standards required for industrial synthesis and research applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

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 tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light gray crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
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.