Description

2H-Pyran-2-Carboxaldehyde, 6-Ethyl-3,6-Dihydro-5-Methyl-, (2R,6R)- (9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. This compound matters as a versatile intermediate for constructing complex molecular architectures, particularly in the development of active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce specific stereochemistry and functional groups into target molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel therapeutic agents, including potential antiviral or anti-inflammatory drugs.
• Agrochemical Synthesis: Used in the creation of advanced, stereoselective pesticides and herbicides where specific isomer activity is required.
• Fine Chemical Production: Serves as a precursor in the manufacture of complex fragrances, flavors, and other high-value specialty chemicals.
• Academic & Industrial Research: A valuable reagent for methodological studies in asymmetric synthesis and catalysis within university and corporate R&D laboratories.
• Material Science Precursor: Potential use in the synthesis of functionalized polymers or organic electronic materials with tailored properties.

Basic Information

Product Name	2H-Pyran-2-Carboxaldehyde, 6-Ethyl-3,6-Dihydro-5-Methyl-, (2R,6R)- (9Ci)
CAS No.	380355-91-9
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	(2R,6R)-6-Ethyl-5-methyl-3,6-dihydro-2H-pyran-2-carboxaldehyde; (2R,6R)-6-Ethyl-5-methyl-3,6-dihydro-2H-pyran-2-carbaldehyde; 6-Ethyl-5-methyl-3,6-dihydro-2H-pyran-2-carboxaldehyde, (2R,6R)-; (2R,6R)-Dihydro-6-ethyl-5-methyl-2H-pyran-2-carboxaldehyde; (2R,6R)-6-Ethyl-5-methyl-2H-pyran-2-carboxaldehyde; Chiral dihydropyran aldehyde; CAS 380355-91-9
EINECS	Contact for details

Quality Control

Our 2H-Pyran-2-Carboxaldehyde, 6-Ethyl-3,6-Dihydro-5-Methyl-, (2R,6R)- (9Ci) is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chiral purity assessment by HPLC, identity confirmation by IR and NMR, and quantification of key impurities. Certificates of Analysis (COA) detailing all specifications are available upon request to support 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 place at a controlled room temperature (15-25°C). This compound is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). For long-term storage, consider sealing under an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (2R,6R)
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.