Description

(R)-5-Methyltetrahydro-2H-Pyran-2-One is a chiral lactone building block of significant importance in fine chemical synthesis. Its value lies in its utility as a key intermediate for the production of pharmaceuticals, agrochemicals, and advanced materials. This compound is primarily needed by research institutions and industrial manufacturers engaged in the development of active pharmaceutical ingredients (APIs), fragrances, and chiral catalysts.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon for the synthesis of various APIs and bioactive molecules.
• Agrochemical Synthesis: Used in the production of chiral pesticides and herbicides.
• Flavor & Fragrance Industry: Serves as a building block for musk-like odorants and other specialty aroma chemicals.
• Asymmetric Catalysis: Employed as a ligand precursor or chiral auxiliary in stereoselective reactions.
• Material Science: A monomer or intermediate for synthesizing specialized polymers and liquid crystals.
• Organic Synthesis Research: A versatile starting material for exploring new methodologies in lactone chemistry.

Basic Information

Product Name	(R)-5-Methyltetrahydro-2H-Pyran-2-One
CAS No.	2857-75-2
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	(R)-5-Methyl-δ-valerolactone; (R)-5-Methyltetrahydro-2H-pyran-2-one; (R)-5-Methyl-2-oxotetrahydro-2H-pyran; (R)-5-Methyl-2-pyrone, tetrahydro-; (R)-5-Methyl-δ-hexalactone; (R)-5-Methyl-δ-caprolactone; (R)-5-Methyloxan-2-one; (R)-5-Methyltetrahydropyran-2-one
EINECS	220-680-9

Quality Control

Our (R)-5-Methyltetrahydro-2H-Pyran-2-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chiral purity analysis by GC or HPLC, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing identity, purity, and specific impurity profiles 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 bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Chiral Purity (ee)	≥ 99.0%
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.