Description

5-Chloro-4-Hydroxy-2H-Chromen-2-One is a versatile and high-purity chromenone derivative, serving as a critical synthetic intermediate in advanced organic chemistry. Its unique halogenated hydroxycoumarin structure makes it a valuable building block for the development of novel active compounds. This product is essential for research and manufacturing in the pharmaceutical and agrochemical industries, where precise molecular frameworks are required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting enzyme inhibition or possessing anticoagulant properties.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging its bioactive coumarin core.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a starting material for developing specialized organic electronic materials due to its fused aromatic system.
• Fluorescent Probe & Dye Development: Utilized in creating sensitive chemical sensors and fluorescent markers for analytical and diagnostic applications.
• Academic & Industrial R&D: A fundamental reagent for synthetic organic chemists exploring new reactions and heterocyclic compound libraries.
• Fine Chemical Production: Employed in the custom synthesis of complex, high-value specialty chemicals for various technological applications.

Basic Information

Product Name	5-Chloro-4-Hydroxy-2H-Chromen-2-One
CAS No.	54311-48-7
Molecular Formula	C9H5ClO3
Molecular Weight	196.59 g/mol
Synonyms	5-Chloro-4-hydroxycoumarin; 4-Hydroxy-5-chlorocoumarin; 5-Chloro-4-hydroxy-2H-1-benzopyran-2-one; 5-Chloro-4-hydroxy-2H-chromen-2-one; 54311-48-7; 5-Chloro-4-hydroxy-2-chromenone; 4-Hydroxy-5-chloro-2H-chromen-2-one
EINECS	Contact for details

Quality Control

Every batch of 5-Chloro-4-Hydroxy-2H-Chromen-2-One is manufactured under strict quality management systems. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

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 (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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