Description

2H-Pyran-6-Carboxylicacid,2-Ethoxy-3,4-Dihydro-4-Methyl-,Ethylester,(2S,4R)-(9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. This compound matters as a key intermediate for constructing complex molecular architectures, particularly in the pharmaceutical and agrochemical sectors, where its specific stereochemistry is crucial for biological activity. It is primarily needed by R&D chemists and process development scientists working on active pharmaceutical ingredients (APIs), fine chemicals, and novel crop protection agents.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the research and development of novel therapeutic agents, including potential antiviral or central nervous system (CNS) drugs.
• Agrochemical Synthesis: Used in the production of advanced, stereoselective pesticides and herbicides where specific isomer activity is required.
• Asymmetric Catalysis Research: Serves as a substrate or ligand precursor in the development of new catalytic systems for stereoselective transformations.
• Fine Chemical Production: Employed in the multistep synthesis of complex, high-value specialty chemicals and flavors/fragrances.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic chemistry, particularly in heterocyclic and natural product synthesis.
• Process Chemistry: Investigated for scale-up in the commercial manufacturing of enantiomerically pure compounds under Good Manufacturing Practice (GMP) guidelines.

Basic Information

Item	Detail
Product Name	2H-Pyran-6-Carboxylicacid,2-Ethoxy-3,4-Dihydro-4-Methyl-,Ethylester,(2S,4R)-(9Ci)
CAS No.	667894-38-4
Molecular Formula	C12H20O5
Molecular Weight	244.28 g/mol
Synonyms	(2S,4R)-2-Ethoxy-4-methyl-3,4-dihydro-2H-pyran-6-carboxylic acid ethyl ester; Ethyl (2S,4R)-2-ethoxy-4-methyl-3,4-dihydro-2H-pyran-6-carboxylate; 2-Ethoxy-4-methyl-3,4-dihydro-2H-pyran-6-carboxylic acid ethyl ester, (2S,4R)-; (2S,4R)-rel-2-Ethoxy-4-methyl-3,4-dihydro-2H-pyran-6-carboxylic Acid Ethyl Ester; SCHEMBL21806227; ACN00833; ZINC000257070511
EINECS	Contact for details

Quality Control

Our 2H-Pyran-6-Carboxylicacid,2-Ethoxy-3,4-Dihydro-4-Methyl-,Ethylester,(2S,4R)-(9Ci) is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chiral HPLC for enantiomeric excess (ee) and standard purity assays, to ensure it meets the high standards required for research and development applications. Certificates of Analysis (COA) with detailed specifications are provided with every shipment.

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). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

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