Description

4-Chloro-3,6-Dihydro-2H-Pyran is a versatile heterocyclic building block and reactive intermediate of significant importance in synthetic organic chemistry. Its value lies in the presence of both a reactive chloro substituent and a dihydropyran ring, enabling its use in the construction of complex molecular architectures. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of various drug candidates and active pharmaceutical ingredients (APIs), particularly those containing tetrahydropyran or pyranone motifs.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging its reactive sites for structural diversification.
• Organic Synthesis Building Block: Serves as a versatile precursor for cycloaddition reactions, nucleophilic substitutions, and ring-opening polymerizations to create complex organic molecules.
• Material Science Research: Employed in the development of specialty polymers, resins, and functional materials where its heterocyclic structure imparts specific properties.
• Chemical Research & Development: A valuable reagent for method development and exploring new synthetic pathways in academic and industrial R&D laboratories.

Basic Information

Product Name	4-Chloro-3,6-Dihydro-2H-Pyran
CAS No.	24265-21-2
Molecular Formula	C5H7ClO
Molecular Weight	118.56 g/mol
Synonyms	4-Chloro-3,6-dihydro-2H-pyran; 4-Chloro-2,3-dihydropyran; 4-Chloro-3,6-dihydro-2H-pyran; 2H-Pyran, 4-chloro-3,6-dihydro-; 4-Chloro-3,6-dihydro-2H-pyran; 4-Chloro-2,3-dihydro-2H-pyran; 4-Chloro-3,4-dihydro-2H-pyran; 4-Chloro-3,6-dihydro-2H-pyran (9CI)
EINECS	Contact for details

Quality Control

Our 4-Chloro-3,6-Dihydro-2H-Pyran is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of our global B2B clients. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment and are available upon request.

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 strong acids and incompatible organic solvents. For long-term storage, consider storing under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Individual impurity ≤ 1.0%

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