Description

5-Chloro-1-(3H)-Isobenzofuranone is a versatile chlorinated isobenzofuranone derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its value lies in its reactive lactone and chloro-substituted aromatic structure, enabling precise chemical transformations for building complex molecular architectures. This compound is essential for research chemists and process developers in the pharmaceutical and agrochemical industries, where it is utilized in the synthesis of active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), particularly in the development of compounds with potential biological activity.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging its halogenated structure.
• Organic Synthesis Reagent: Serves as a versatile precursor for constructing complex heterocyclic compounds and fine chemicals in laboratory and pilot-scale operations.
• Material Science Research: Investigated as a monomer or modifying agent in the development of specialized polymers and advanced organic materials.
• Chemical Research & Development: Employed in academic and industrial R&D for methodological studies and the discovery of new synthetic pathways.

Basic Information

Product Name	5-Chloro-1-(3H)-Isobenzofuranone
CAS No.	54109-03-4
Molecular Formula	C8H5ClO2
Molecular Weight	168.58 g/mol
Synonyms	5-Chloroisobenzofuran-1(3H)-one; 5-Chlorophthalide; 5-Chloro-1,3-dihydroisobenzofuran-1-one; 5-Chloro-3H-isobenzofuran-1-one; NSC 403914; 5-Chloro-1-oxo-1,3-dihydroisobenzofuran; 5-Chloro-1(3H)-isobenzofuranone
EINECS	Contact for details

Quality Control

Our 5-Chloro-1-(3H)-Isobenzofuranone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets high-grade specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is provided with every shipment to guarantee traceability and consistency.

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 such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (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.