Description

2H-Pyran-2-One,6-Ethenyl-5,6-Dihydro-5-(2-Propenyloxy)-,(5S,6R)-(9Ci) is a high-purity, stereochemically defined organic compound with the CAS number 634196-52-4. This specific chiral intermediate is valued for its role in the synthesis of complex molecules, offering precise control over the final product's stereochemistry and biological activity. It is primarily sought by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

This specialized chiral building block is utilized in advanced synthetic chemistry across several high-value industries.

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new therapeutic agents, particularly for creating molecules with specific stereocenters.
• Agrochemical Synthesis: Used in the production of advanced, stereoselective pesticides and herbicides where biological activity is enantiomer-dependent.
• Fine Chemical Production: Serves as a precursor in the manufacture of complex fragrances, flavors, and other specialty chemicals requiring high stereochemical purity.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological development in asymmetric synthesis and catalysis studies.
• Material Science Research: Investigated as a monomer or precursor for novel polymers with specific optical or chiral properties.

Basic Information

Item	Details
Product Name	2H-Pyran-2-One,6-Ethenyl-5,6-Dihydro-5-(2-Propenyloxy)-,(5S,6R)-(9Ci)
CAS No.	634196-52-4
Molecular Formula	C10H12O3
Molecular Weight	180.20 g/mol
Synonyms	(5S,6R)-6-Ethenyl-5,6-dihydro-5-(2-propenyloxy)-2H-pyran-2-one; 5-Allyloxy-6-vinyl-5,6-dihydro-2H-pyran-2-one (stereospecific); (5S,6R)-5-Allyloxy-6-vinyl-3,4,5,6-tetrahydro-2H-pyran-2-one; Dihydro-5-allyloxy-6-vinyl-2-pyrone; Stereoisomer of 634196-52-4; Chiral dihydropyranone derivative; Allyl vinyl dihydropyranone
EINECS	Contact for details

Quality Control

Every batch of 2H-Pyran-2-One,6-Ethenyl-5,6-Dihydro-5-(2-Propenyloxy)-,(5S,6R)-(9Ci) is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive analytical testing, including chiral purity verification by HPLC, is performed to guarantee the specified enantiomeric excess (e.e.) and chemical purity. A detailed Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C for long-term stability. This compound is light-sensitive and easily oxidized; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain purity and potency.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% e.e.
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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