Description

4-Methylenetetrahydro-2H-Pyran is a versatile heterocyclic building block and key intermediate in organic synthesis. This compound is valued for its unique cyclic ether structure, which is integral to constructing more complex molecular architectures. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Flavor & Fragrance Ingredient: Acts as a building block for creating specific olfactory notes and complex aroma chemicals.
• Polymer & Material Science: Employed in the production of specialty polymers, resins, and advanced functional materials.
• Organic Synthesis Reagent: Functions as a versatile reagent and scaffold in academic and industrial research for constructing heterocyclic compounds.
• Chemical Research: Utilized in methodological studies and as a standard in analytical chemistry laboratories.

Basic Information

Product Name	4-Methylenetetrahydro-2H-Pyran
CAS No.	36838-71-8
Molecular Formula	C6H10O
Molecular Weight	98.14 g/mol
Synonyms	4-Methyleneoxane; 4-Methylenetetrahydropyran; 3,4-Dihydro-2H-pyran-4-methylene; Dihydro-2H-pyran-4(3H)-ylidene methane; 4-Methylenetetrahydro-2H-pyran; 4-Methylenetetrahydropyran-2-one (common misnomer); 4-Methylenetetrahydro-2H-pyran-2-one; 4-Methylenetetrahydropyran-2-ol
EINECS	Contact for details

Quality Control

Our 4-Methylenetetrahydro-2H-Pyran is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 heat, sparks, and open flames. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 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.