Description

6-Amino-5-Chloro-1-Naphthol-3-Sulfonic Acid is a specialized naphthalene derivative sulfonic acid that serves as a critical intermediate in the synthesis of high-value dyes and pigments. Its molecular structure, featuring amino, chloro, and sulfonic acid functional groups, allows for precise color tuning and enhanced fastness properties in the final products. This compound is essential for manufacturers in the dye and pigment industry, as well as for research institutions developing novel chromophores and optical materials.

Application

• Key Intermediate for Dyes & Pigments: Primarily used in the synthesis of azo dyes, acid dyes, and reactive dyes, imparting vibrant colors with good light and wash fastness.
• Pharmaceutical Intermediate: Serves as a building block in the research and development of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Research & Development: Utilized in academic and industrial R&D for creating novel organic compounds, ligands, and functional materials.
• Specialty Chemical Synthesis: Acts as a precursor for other sulfonated naphthalene derivatives used in various industrial chemical processes.

Basic Information

Product Name	6-Amino-5-Chloro-1-Naphthol-3-Sulfonic Acid
CAS No.	6361-45-1
Molecular Formula	C10H8ClNO4S
Molecular Weight	273.69 g/mol
Synonyms	6-Amino-5-chloro-1-naphthol-3-sulphonic acid; 1-Naphthol-3-sulfonic acid, 6-amino-5-chloro-; 5-Chloro-6-amino-1-naphthol-3-sulfonic acid; 6-Amino-5-chloro-3-hydroxy-1-naphthalenesulfonic acid; 6-Amino-5-chloro-1-naphthol-3-sulphonate; 6-Amino-5-chloro-1-naphthol-3-sulfonate; 6-Amino-5-chloro-3-hydroxy-1-naphthalenesulphonic acid
EINECS	228-874-7

Quality Control

Our production of 6-Amino-5-Chloro-1-Naphthol-3-Sulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC and NMR to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). This material is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Light brown to gray 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

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