Description

Tetrahydro-3,5-Dimethyl-2H-Pyran-2-One is a versatile lactone derivative with a saturated pyranone structure, serving as a valuable intermediate in advanced organic synthesis. Its unique cyclic ester framework makes it a critical building block for creating complex molecules with specific functional properties. This compound is essential for research and development chemists, particularly in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: A key synthon in 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: Serves as a precursor for creating specific lactone-based flavor compounds and aroma chemicals.
• Polymer Chemistry: Acts as a monomer or co-monomer for synthesizing specialized polyesters and other polymeric materials.
• Organic Synthesis Reagent: Employed in various organic transformations, including ring-opening reactions and as a chiral building block.
• Research & Development: Utilized in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	Tetrahydro-3,5-Dimethyl-2H-Pyran-2-One
CAS No.	3290-57-1
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	3,5-Dimethyltetrahydro-2H-pyran-2-one; 3,5-Dimethyl-δ-valerolactone; 3,5-Dimethyldihydro-2H-pyran-2(3H)-one; Dihydro-3,5-dimethyl-2(3H)-furanone (incorrect but common); 3,5-Dimethyl-2-oxotetrahydro-2H-pyran; 3,5-Dimethyl-2-oxotetrahydropyran
EINECS	221-951-5

Quality Control

Our Tetrahydro-3,5-Dimethyl-2H-Pyran-2-One 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 industrial and research partners. 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.450 - 1.455
Density (g/mL, 20°C)	1.020 - 1.050

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