Description

2-Naphthalenesulfonyl Chloride is a versatile and reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to act as a sulfonylation agent, introducing the naphthalenesulfonyl group to create compounds with enhanced properties. This intermediate is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients, dyes, and functional materials.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of sulfonamide-based drugs, including diuretics and antimicrobial agents.
• Agrochemical Synthesis: Used in the production of herbicides and pesticides, where the sulfonyl group contributes to biological activity.
• Dye and Pigment Manufacturing: Acts as a precursor for sulfonated dyes, improving solubility and color fastness.
• Polymer Modification: Employed to introduce sulfonyl functionalities into polymers, altering their physical and chemical characteristics.
• Chemical Research & Development: A valuable tool for medicinal chemistry and material science research for creating novel molecular structures.
• Liquid Crystal & OLED Material Production: Used in the synthesis of advanced electronic materials requiring specific sulfonated components.

Basic Information

Product Name	2-Naphthalenesulfonyl Chloride
CAS No.	93-11-8
Molecular Formula	C10H7ClO2S
Molecular Weight	226.68 g/mol
Synonyms	2-Naphthalenesulfonyl chloride; β-Naphthalenesulfonyl chloride; 2-Naphthylsulfonyl chloride; NSC 404107; Naphthalene-2-sulfonyl chloride; β-Naphthalenesulphonyl chloride; 2-Naphthalenesulfonic acid chloride
EINECS	202-218-9

Quality Control

Our 2-Naphthalenesulfonyl Chloride is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 tightly sealed to prevent degradation from atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	68°C - 72°C
Water Content (KF)	≤ 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.