Description

2H-Pyran-6-Carboxylicacid,2-Ethoxy-3,4-Dihydro-3,4-Dimethyl-,Methylester,(2R,3S,4S)-Rel-(9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. This compound matters because it provides a versatile and structurally complex scaffold for constructing molecules with precise three-dimensional architecture, which is critical for developing new active pharmaceutical ingredients (APIs) and functional materials. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries who are engaged in the synthesis of novel bioactive compounds and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new drug candidates, particularly for complex target molecules.
• Agrochemical Synthesis: Used in the construction of advanced, stereoselective pesticide and herbicide molecules to enhance efficacy and environmental profile.
• Asymmetric Catalysis Research: Acts as a ligand precursor or a test substrate in the development of new catalytic systems for stereocontrolled reactions.
• Fine Chemical Production: Employed in the multi-step synthesis of specialty chemicals, flavors, and fragrances requiring high stereochemical purity.
• Academic & Institutional R&D: Utilized in university and government laboratories for methodological studies in synthetic organic chemistry and medicinal chemistry.
• Process Chemistry Development: Investigated for scalable synthetic routes in pilot plants for the commercial production of chiral compounds.

Basic Information

Product Name	2H-Pyran-6-Carboxylicacid,2-Ethoxy-3,4-Dihydro-3,4-Dimethyl-,Methylester,(2R,3S,4S)-Rel-(9Ci)
CAS No.	223653-02-9
Molecular Formula	C11H18O4
Molecular Weight	214.26 g/mol
Synonyms	(2R,3S,4S)-2-Ethoxy-3,4-dimethyl-3,4-dihydro-2H-pyran-6-carboxylic acid methyl ester; Methyl (2R,3S,4S)-2-ethoxy-3,4-dimethyl-3,4-dihydro-2H-pyran-6-carboxylate; Rel-(2R,3S,4S)-2-Ethoxy-3,4-dimethyl-3,4-dihydro-2H-pyran-6-carboxylic acid methyl ester; 2-Ethoxy-3,4-dihydro-3,4-dimethyl-2H-pyran-6-carboxylic acid methyl ester, (2R,3S,4S)-rel-; 223653-02-9; (rel)-(2R,3S,4S)-Methyl 2-ethoxy-3,4-dimethyl-3,4-dihydro-2H-pyran-6-carboxylate
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. We provide comprehensive analytical data to support your research and development needs. Certificates of Analysis (COA) detailing purity, chiral purity (enantiomeric/excess), and identity are available upon request for every batch, ensuring full traceability and supply chain reliability.

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). This material is moisture-sensitive; keep the container tightly sealed under an inert atmosphere if specified.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% de (diastereomeric excess)
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.