Description

2H-Pyran-2-One, Tetrahydro-3,4-Dihydroxy-5-Methyl-6-Pentyl-, (3S,4S,5S,6S)- (9Ci) is a stereochemically defined, substituted dihydroxy-tetrahydro-2H-pyran derivative. This compound is valued for its precise chiral structure, making it a critical advanced intermediate in the synthesis of complex organic molecules. It is primarily sought by research and development teams in the pharmaceutical and fine chemical industries for applications requiring high stereochemical purity.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in projects targeting specific stereochemistry.
• Organic Synthesis Research: Used in academic and industrial R&D for constructing complex natural product analogs and novel molecular architectures.
• Fine Chemical Production: Acts as a precursor in the manufacture of specialty chemicals where the defined (3S,4S,5S,6S) configuration is essential for function.
• Flavor & Fragrance Chemistry: Potential intermediate for the development of stereospecific flavorants or fragrance components due to its lactone-related structure.

Basic Information

Item	Details
Product Name	2H-Pyran-2-One, Tetrahydro-3,4-Dihydroxy-5-Methyl-6-Pentyl-, (3S,4S,5S,6S)- (9Ci)
CAS No.	765941-85-3
Molecular Formula	C11H20O4
Molecular Weight	216.27 g/mol
Synonyms	(3S,4S,5S,6S)-Tetrahydro-3,4-dihydroxy-5-methyl-6-pentyl-2H-pyran-2-one; (3S,4S,5S,6S)-3,4-Dihydroxy-5-methyl-6-pentyltetrahydro-2H-pyran-2-one; Stereoisomer of massoia lactone; Dihydroxy-methyl-pentyl-tetrahydro-2H-pyran-2-one; (all-S)-Massoialactone derivative; Chiral dihydroxy lactone intermediate; Pentyl-substituted tetrahydro-2H-pyran-2,3,4-triol derivative
EINECS	Contact for details

Quality Control

Every batch of this chiral intermediate is produced under strict quality management to ensure identity, purity, and stereochemical integrity. Standard quality control includes HPLC for assay and chiral purity, IR and NMR for structural confirmation, and tests for residual solvents and moisture. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). The product may be hygroscopic; keep the container tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (HPLC)	≥ 98.0% (3S,4S,5S,6S)
Water Content (KF)	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines

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