Description

4-Chloro-1(2H)-Isoquinolone is a versatile heterocyclic building block and key synthetic intermediate. This compound matters for its role in constructing complex molecular architectures, particularly in the development of active pharmaceutical ingredients (APIs) and advanced organic materials. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for synthesizing novel compounds with potential biological activity.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various bioactive molecules, including potential kinase inhibitors and other therapeutic agents.
• Agrochemical Research: Used in the development of novel pesticides and herbicides, leveraging the isoquinoline scaffold's biological properties.
• Organic Synthesis Building Block: Serves as a versatile starting material for constructing complex fused-ring systems and functionalized heterocycles in academic and industrial R&D.
• Material Science: Investigated as a monomer or precursor for creating specialized polymers and organic electronic materials.
• Chemical Biology Probe Development: Utilized in medicinal chemistry to create tool compounds for studying biological pathways and target validation.

Basic Information

Product Name	4-Chloro-1(2H)-Isoquinolone
CAS No.	56241-09-9
Molecular Formula	C9H6ClNO
Molecular Weight	179.60 g/mol
Synonyms	4-Chloro-1H-isoquinolin-1-one; 4-Chloro-1-isoquinolinol; 4-Chloroisoquinolin-1(2H)-one; 4-Chloro-2H-isoquinolin-1-one; 1(2H)-Isoquinolone, 4-chloro-; 56241-09-9
EINECS	Contact for details

Quality Control

Our 4-Chloro-1(2H)-Isoquinolone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and residual solvents is provided with every shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. The container must be kept tightly closed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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