Description

7,8-Dichloro-3,4-Dihydro-2H-1-Benzopyran-4-One is a high-purity, versatile heterocyclic building block and key synthetic intermediate. Its value lies in its functionalized benzopyranone core, which serves as a critical scaffold for constructing more complex molecules in advanced research and development. This compound is primarily needed by pharmaceutical R&D teams, agrochemical scientists, and specialty chemical manufacturers for applications in medicinal chemistry and fine chemical synthesis.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for central nervous system (CNS) and cardiovascular drug candidates.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and insecticides with enhanced efficacy.
• Organic Synthesis: Serves as a versatile starting material for constructing complex heterocyclic compounds and natural product analogs in academic and industrial laboratories.
• Material Science: Potential intermediate for the development of advanced organic electronic materials and functional dyes.
• Chemical Biology: Utilized as a probe or scaffold in the design of enzyme inhibitors and other biologically active molecules for target validation studies.

Basic Information

Product Name	7,8-Dichloro-3,4-Dihydro-2H-1-Benzopyran-4-One
CAS No.	27407-09-6
Molecular Formula	C9H6Cl2O2
Molecular Weight	217.05 g/mol
Synonyms	7,8-Dichlorochroman-4-one; 7,8-Dichloro-4-chromanone; 7,8-Dichloro-3,4-dihydro-2H-chromen-4-one; 7,8-Dichloro-4-chromone (common misnomer); 2H-1-Benzopyran-4-one, 7,8-dichloro-3,4-dihydro-; 27407-09-6; 7,8-Dichloro-3,4-dihydro-4H-1-benzopyran-4-one
EINECS	Contact for details

Quality Control

Our 7,8-Dichloro-3,4-Dihydro-2H-1-Benzopyran-4-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all specifications and test results. Our quality commitment ensures material integrity for your critical R&D and scale-up processes.

Storage

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

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.