Description

4-Chloropyridinium Chloride 1-Oxide is a versatile heterocyclic building block and reagent of significant interest in advanced organic synthesis. This compound is valued for its unique reactivity as a functionalized pyridine derivative, enabling the construction of complex molecular architectures. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing functionalized pyridine or pyridine N-oxide moieties.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides where the chloropyridine structure is a critical component.
• Ligand and Catalyst Preparation: Serves as a starting material for the synthesis of specialized ligands used in coordination chemistry and catalytic processes.
• Material Science Research: Employed in the development of organic electronic materials, such as charge-transport layers or organic light-emitting diodes (OLEDs).
• Chemical Biology Probes: Useful for creating tagged or modified molecules for studying biological systems and mechanisms.
• Custom Synthesis and Scale-up: Supplied for contract research organizations (CROs) and chemical manufacturers engaged in custom synthesis projects from milligram to kilogram scale.

Basic Information

Product Name	4-Chloropyridinium Chloride 1-Oxide
CAS No.	71501-48-9
Molecular Formula	C5H5Cl2NO
Molecular Weight	182.01 g/mol
Synonyms	4-Chloropyridine N-Oxide Hydrochloride; 4-Chloropyridine 1-Oxide Hydrochloride; 4-Chloro-1-oxidopyridin-1-ium Chloride; 4-Chloropyridinium, 1-oxide, chloride; 4-Chloropyridine Hydrochloride N-Oxide; 4-Cl-PyO·HCl
EINECS	Contact for details

Quality Control

Every batch of 4-Chloropyridinium Chloride 1-Oxide is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure the identity, purity, and consistency required for research and development applications. A Certificate of Analysis (COA) detailing specifications such as assay (by HPLC/NMR), impurity profile, and physical characteristics is supplied with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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