Description

2-Pyridinecarbonyl Chloride, 4-Chloro-5-Methoxy- (9Ci) is a high-purity, reactive chemical intermediate with the CAS number 740744-31-4. This compound is valued for its role as a versatile building block in the synthesis of complex heterocyclic molecules. It is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in kinase inhibitor and other small-molecule therapeutic research.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, contributing to the creation of new active ingredients with specific modes of action.
• Material Science Research: Serves as a precursor for functionalized pyridine derivatives used in ligand design for catalysis and advanced polymer development.
• Chemical Biology Probes: Employed in the synthesis of labeled compounds and molecular probes for biochemical and diagnostic applications.
• Fine Chemical Manufacturing: Acts as a critical building block in custom synthesis and contract manufacturing for specialized chemical products.

Basic Information

Product Name	2-Pyridinecarbonyl Chloride, 4-Chloro-5-Methoxy- (9Ci)
CAS No.	740744-31-4
Molecular Formula	C7H5Cl2NO2
Molecular Weight	206.03 g/mol
Synonyms	4-Chloro-5-methoxypicolinoyl chloride; 4-Chloro-5-methoxypyridine-2-carbonyl chloride; 2-Pyridinecarbonyl chloride, 4-chloro-5-methoxy-; 4-Chloro-5-methoxy-2-pyridinecarboxylic acid chloride; 4-Chloro-5-methoxypicolinic acid chloride; 2-Carbonyl chloride-4-chloro-5-methoxypyridine
EINECS	Contact for details

Quality Control

Our 2-Pyridinecarbonyl Chloride, 4-Chloro-5-Methoxy- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and batch-to-batch consistency suitable for sensitive synthesis applications. A detailed Certificate of Analysis (COA) is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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