Description

3-Chloro-1-Methylpyrazin-2(1H)-One is a high-purity heterocyclic building block of significant importance in advanced organic synthesis. This compound serves as a versatile intermediate for constructing complex molecular architectures, particularly in the development of active pharmaceutical ingredients (APIs) and agrochemicals. It is essential for research and production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality synthetic precursors.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging its reactive chloro and carbonyl groups.
• Chemical Research & Development: Serves as a fundamental building block in medicinal chemistry and process chemistry for structure-activity relationship (SAR) studies and route scouting.
• Material Science Precursor: Potential use in the synthesis of specialized ligands, polymers, or organic electronic materials due to its heterocyclic core.

Basic Information

Product Name	3-Chloro-1-Methylpyrazin-2(1H)-One
CAS No.	200562-22-7
Molecular Formula	C5H5ClN2O
Molecular Weight	144.56 g/mol
Synonyms	3-Chloro-1-methyl-1H-pyrazin-2-one; 3-Chloro-1-methylpyrazin-2(1H)-one; 1-Methyl-3-chloropyrazin-2(1H)-one; 3-Chloro-1-methyl-2(1H)-pyrazinone; 2(1H)-Pyrazinone, 3-chloro-1-methyl-; 3-Chloro-1-methyl-1,2-dihydropyrazin-2-one
EINECS	Contact for details

Quality Control

Our 3-Chloro-1-Methylpyrazin-2(1H)-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and identity. Certificates of Analysis (COA) detailing purity, impurities, and physical characteristics are provided with every shipment to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and reducing agents. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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