Description

5-Chloro-2-Methylquinazolin-4(3H)-One is a versatile and high-purity quinazolinone derivative, serving as a critical building block in advanced organic synthesis. Its value lies in providing a reliable, structurally defined scaffold for the development of novel bioactive molecules. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly those focused on creating new drug candidates and crop protection agents.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential therapeutic agents, including kinase inhibitors and other small-molecule drugs.
• Agrochemical Research: Used as a core structure for developing new herbicides, fungicides, and insecticides.
• Chemical Synthesis Building Block: Employed in heterocyclic chemistry for constructing complex molecular architectures in academic and industrial R&D.
• Material Science Research: Investigated as a monomer or precursor for specialty polymers and organic electronic materials.
• Biochemical Tool Compound: Serves as a starting point for developing enzyme inhibitors and probes for biological pathway studies.

Basic Information

Product Name	5-Chloro-2-Methylquinazolin-4(3H)-One
CAS No.	19407-56-8
Molecular Formula	C9H7ClN2O
Molecular Weight	194.62 g/mol
Synonyms	5-Chloro-2-methyl-4(3H)-quinazolinone; 5-Chloro-2-methyl-3,4-dihydroquinazolin-4-one; 4(3H)-Quinazolinone, 5-chloro-2-methyl-; 19407-56-8; 5-Chloro-2-methylquinazolin-4-ol; 2-Methyl-5-chloroquinazolin-4(3H)-one
EINECS	Contact for details

Quality Control

Our 5-Chloro-2-Methylquinazolin-4(3H)-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
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.