Description

(S)-6-[(S)-1-Acetoxypentyl]-5,6-Dihydro-4-Methoxy-2H-Pyran-2-One is a high-purity chiral lactone derivative, serving as a critical advanced intermediate in sophisticated organic synthesis. Its precise stereochemistry makes it an invaluable building block for constructing complex molecules with specific biological activity. This compound is primarily sought after by research institutions and pharmaceutical developers for the synthesis of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new therapeutic agents, particularly for complex target molecules.
• Asymmetric Synthesis: Utilized as a building block in stereoselective reactions to introduce defined chiral centers into larger molecular frameworks.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals where high purity and specific stereochemistry are paramount.
• Academic & Industrial Research: Serves as a standard or starting material in methodological studies and process chemistry development within R&D laboratories.
• Agrochemical Synthesis: Potential intermediate in the development of chiral active ingredients for crop protection products.
• Fragrance & Flavor Precursor: Can be used in the synthesis of complex lactone-based aroma compounds.

Basic Information

Item	Detail
Product Name	(S)-6-[(S)-1-Acetoxypentyl]-5,6-Dihydro-4-Methoxy-2H-Pyran-2-One
CAS No.	34565-33-8
Molecular Formula	C13H20O5
Molecular Weight	256.30 g/mol
Synonyms	(3S,6S)-6-(1-Acetoxypentyl)-5,6-dihydro-4-methoxy-2H-pyran-2-one; (S,S)-Lactone intermediate; 2H-Pyran-2-one, 5,6-dihydro-4-methoxy-6-[(1S)-1-(acetyloxy)pentyl]-, (6S)-; 34565-33-8; Chiral dihydropyranone; Acetoxy-substituted lactone
EINECS	Contact for details

Quality Control

We supply (S)-6-[(S)-1-Acetoxypentyl]-5,6-Dihydro-4-Methoxy-2H-Pyran-2-One with a focus on high chiral purity and chemical consistency. Our products undergo rigorous quality testing, including chiral HPLC and NMR analysis, to ensure compliance with stringent research and development standards. A comprehensive Certificate of Analysis (COA) detailing purity, enantiomeric excess, and impurity profile is provided with each batch.

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 sources and incompatible materials. For long-term storage, consider inert atmosphere conditions to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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