Description

2-Hydroxy-3-Carboxy-Naphtalene-1-Sulfonylchloride is a specialized aromatic sulfonyl chloride derivative that serves as a critical building block in advanced organic synthesis. Its unique bifunctional structure, featuring both a reactive sulfonyl chloride and a carboxylic acid group, makes it a versatile intermediate for constructing complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require high-purity intermediates for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of modern herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a core component for creating high-performance azo dyes and pigments with enhanced color fastness.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for synthesizing specialty polymers and resins.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and material properties.
• Liquid Crystal & OLED Material Production: Used in the synthesis of advanced organic electronic materials.

Basic Information

Product Name	2-Hydroxy-3-Carboxy-Naphtalene-1-Sulfonylchloride
CAS No.	63460-69-5
Molecular Formula	C11H7ClO5S
Molecular Weight	286.69 g/mol
Synonyms	3-Carboxy-2-hydroxynaphthalene-1-sulfonyl chloride; 2-Hydroxy-3-naphthoic acid-1-sulfonyl chloride; 1-Sulfonylchloride-2-hydroxy-3-naphthoic acid; 2-Hydroxy-1-sulfonylchloride-3-naphthoic acid; 2-Hydroxy-3-naphthalenecarboxylic acid 1-sulfonyl chloride; 3-Hydroxy-2-naphthoic acid-1-sulfonyl chloride (common misnomer); HNC-Sulfonyl Chloride; NSC 403119
EINECS	Contact for details

Quality Control

Our 2-Hydroxy-3-Carboxy-Naphtalene-1-Sulfonylchloride is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet the stringent requirements of our global clientele. Certificates of Analysis (COA) detailing purity, identity, and related substances are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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