Description

2H-Pyran-2-Aceticacid,6-Ethoxy-5,6-Dihydro-,Ethylester,(2R,6S)-(9Ci) CAS NO 497161-78-1 is a high-purity, stereochemically defined chiral intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a key building block in the development of complex, biologically active molecules, offering precise control over molecular architecture. It is primarily needed by research institutions and pharmaceutical companies engaged in the synthesis of novel active pharmaceutical ingredients (APIs), agrochemicals, and specialty fine chemicals where stereochemical integrity is paramount.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the research and development of new therapeutic agents, particularly in stereoselective synthesis.
• Agrochemical Synthesis: Used in the production of advanced, enantiomerically pure pesticides and herbicides.
• Academic & Industrial Research: Serves as a valuable reagent in methodological studies and for constructing complex heterocyclic frameworks in organic chemistry.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Process Chemistry Development: Utilized for scaling up synthetic routes in pilot plants and optimizing manufacturing processes for chiral molecules.

Basic Information

Product Name	2H-Pyran-2-Aceticacid,6-Ethoxy-5,6-Dihydro-,Ethylester,(2R,6S)-(9Ci)
CAS No.	497161-78-1
Molecular Formula	C11H18O4
Molecular Weight	214.26 g/mol
Synonyms	(2R,6S)-6-Ethoxy-5,6-dihydro-2H-pyran-2-acetic acid ethyl ester; Ethyl (2R,6S)-6-ethoxy-5,6-dihydro-2H-pyran-2-acetate; 2H-Pyran-2-acetic acid, 6-ethoxy-5,6-dihydro-, ethyl ester, (2R,6S)-; (2R,6S)-Ethyl 6-ethoxy-5,6-dihydro-2H-pyran-2-acetate; 497161-78-1; (2R,6S)-rel-6-Ethoxy-3,4-dihydro-2H-pyran-2-acetic Acid Ethyl Ester
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is characterized using advanced analytical techniques including HPLC, GC, NMR, and chiral analysis to confirm identity, purity, and enantiomeric excess. Certificates of Analysis (COA) detailing all specifications are available upon request, supporting your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong acids and organic solvents. The container should be kept tightly sealed to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
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.