Description

Pyridine-3-Sulfonyl Chloride is a versatile and highly 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 reagent, facilitating the introduction of the pyridine-3-sulfonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to create novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and insecticides with enhanced activity and selectivity.
• Material Science: Building block for creating functional polymers, dyes, and photoactive compounds.
• Chemical Biology & Proteomics: Employed as a labeling agent or linker for modifying proteins and studying biological pathways.
• Organic Synthesis: Versatile reagent for constructing complex heterocyclic compounds and facilitating C-S bond formation.

Basic Information

Product Name	Pyridine-3-Sulfonyl Chloride
CAS No.	16133-25-8
Molecular Formula	C5H4ClNO2S
Molecular Weight	177.61 g/mol
Synonyms	3-Pyridinesulfonyl Chloride; 3-Pyridylsulfonyl Chloride; Nicotinic Acid Sulfonyl Chloride; Pyridine-3-sulfonic acid chloride; β-Pyridinesulfonyl Chloride; 3-Sulfonylchloridopyridine; 3-Chlorosulfonylpyridine
EINECS	Contact for details

Quality Control

Our Pyridine-3-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is 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). This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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