Description

4H-Pyran-4-One,6-Ethyl-2,3-Dihydro-3-Methyl-2-[(1E)-1-Methyl-1-Butenyl]-,(2S,3R)-(9Ci) is a high-purity, stereochemically defined organic compound with the CAS number 797758-65-7. This compound is valued for its specific chiral configuration, making it a critical advanced intermediate in the synthesis of complex molecules where stereochemistry is paramount. It is primarily sought by pharmaceutical R&D and fine chemical sectors for developing novel active ingredients and specialty materials.

Application

This chiral pyranone derivative serves as a sophisticated building block in advanced organic synthesis. Its primary applications include:

• Pharmaceutical Intermediate: Key precursor in the research and development of new drug candidates, particularly for creating molecules with specific three-dimensional structures.
• Agrochemical Synthesis: Used in the development of advanced, stereoselective pesticides and herbicides.
• Flavor & Fragrance Chemistry: Potential intermediate for synthesizing complex, naturally-derived aroma compounds.
• Material Science Research: Building block for novel organic frameworks and functional polymers.
• Academic & Contract Research: Essential reagent for methodological studies in asymmetric synthesis and catalysis.

Basic Information

Item	Details
Product Name	4H-Pyran-4-One,6-Ethyl-2,3-Dihydro-3-Methyl-2-[(1E)-1-Methyl-1-Butenyl]-,(2S,3R)-(9Ci)
CAS No.	797758-65-7
Molecular Formula	C13H20O2
Molecular Weight	208.30 g/mol
Synonyms	(2S,3R)-6-Ethyl-3-methyl-2-[(1E)-1-methylbut-1-en-1-yl]-2,3-dihydro-4H-pyran-4-one; (2S,3R)-6-Ethyl-3-methyl-2-[(E)-1-methyl-1-butenyl]-2,3-dihydro-4H-pyran-4-one; 2,3-Dihydro-6-ethyl-3-methyl-2-[(1E)-1-methyl-1-butenyl]-4H-pyran-4-one, (2S,3R)-; Stereoisomer of Flavor Compound; Chiral Dihydropyranone; Advanced Chiral Intermediate
EINECS	Contact for details

Quality Control

Our production of this chiral intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and stereochemical integrity. Quality is verified through comprehensive analytical methods including Chiral HPLC for enantiomeric excess and NMR for structural confirmation. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting purity, chiral purity, and key physical parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This compound may be sensitive to prolonged exposure to air and moisture; it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% e.e.
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.