Description

5-Methyl-Tetrahydro-Pyran-2-One is a versatile lactone derivative with a saturated pyranone structure. This compound serves as a valuable building block and intermediate in advanced organic synthesis, prized for its reactivity and potential as a chiral precursor. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and fragrance industries for developing active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Flavor & Fragrance Ingredient: Acts as a precursor for musk-like odorants and other specialty aroma chemicals.
• Organic Synthesis Building Block: Employed in research and development for constructing heterocyclic compounds and natural product analogs.
• Polymer Chemistry: Can be utilized as a monomer or modifying agent for specialty polymers and resins.
• Solvent & Reaction Medium: Serves as a polar aprotic solvent for specific organic transformations.

Basic Information

Product Name	5-Methyl-Tetrahydro-Pyran-2-One
CAS No.	3123-98-6
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	5-Methyltetrahydro-2H-pyran-2-one; 5-Methyl-δ-valerolactone; 5-Methyl-dihydro-2(3H)-furanone (incorrect but common misnomer); 5-Methyloxan-2-one; 5-Methyltetrahydropyran-2-one; 5-Methyl-2-oxotetrahydro-2H-pyran; δ-5-Methylvalerolactone
EINECS	221-500-7

Quality Control

Our 5-Methyl-Tetrahydro-Pyran-2-One 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 provided and available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.450 - 1.455
Specific Gravity (20°C)	1.050 - 1.090

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