Description

2H-Pyran CAS NO 289-66-7 is a versatile heterocyclic organic compound characterized by its unsaturated six-membered ring containing one oxygen atom. This structure serves as a fundamental building block and key intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is particularly valuable for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Building Block: Serves as a versatile scaffold for constructing complex heterocycles and natural product analogs in R&D laboratories.
• Material Science Research: Investigated as a monomer or precursor for developing specialized polymers and advanced organic materials.
• Flavor & Fragrance Industry: Potential intermediate for the synthesis of specific aroma chemicals and flavor compounds.
• Academic & Industrial Research: A standard reagent for methodological studies in synthetic organic chemistry and catalysis.

Basic Information

Product Name	2H-Pyran
CAS No.	289-66-7
Molecular Formula	C5H6O
Molecular Weight	82.10 g/mol
Synonyms	2H-Pyran; 2H-Pyran, 3,4-dihydro-; 3,4-Dihydro-2H-pyran; DHP; 2,3-Dihydro-4H-pyran; 4H-Pyran, 2,3-dihydro-; 1-Oxa-2-cyclohexene; 3,4-Dihydro-2H-pyran
EINECS	206-014-5

Quality Control

Our 2H-Pyran is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity 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 relevant impurities 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 place, away from heat sources and incompatible materials. Recommended storage temperature is 2-8°C for extended stability. This product is highly volatile and moisture-sensitive; ensure containers are kept tightly sealed under an inert atmosphere for long-term storage.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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