Description

2H-Pyran-4(3H)-One is a versatile heterocyclic organic compound with the CAS number 84302-42-1. It serves as a valuable building block and intermediate in advanced organic synthesis, enabling the creation of complex molecular architectures. This compound is particularly relevant for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel drug candidates, particularly for heterocyclic active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where the pyranone core imparts specific biological activity.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other specialty chemicals requiring complex oxygen-containing heterocycles.
• Material Science Research: Investigated as a monomer or building block for novel polymers and organic electronic materials.
• Academic & R&D: A crucial reagent in methodological organic chemistry research for studying cyclization reactions and heterocyclic chemistry.

Basic Information

Product Name	2H-Pyran-4(3H)-One
CAS No.	84302-42-1
Molecular Formula	C5H6O2
Molecular Weight	98.10 g/mol
Synonyms	4H-Pyran-4-one, 2,3-dihydro-; 2,3-Dihydro-4H-pyran-4-one; 4-Oxo-3,4-dihydro-2H-pyran; Dihydro-4H-pyran-4-one; γ-Pyron; Tetrahydro-4-pyrone (incorrect but common); 4-Pyranone, 2,3-dihydro-; 84302-42-1
EINECS	Contact for details

Quality Control

Our 2H-Pyran-4(3H)-One is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific results for purity, identity, and impurities is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong bases and incompatible organic solvents. The container should be kept tightly sealed to prevent contamination and moisture absorption.

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%

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