Description

(4S)-Hydroxy-3-Methyl-2-(2-Propenyl)-2-Cyclopentene-1-One is a chiral, optically active cyclopentenone derivative that serves as a valuable synthetic intermediate and building block in advanced organic synthesis. Its unique structure, featuring both a hydroxyl group and an unsaturated ketone moiety, makes it a versatile precursor for constructing complex molecules with defined stereochemistry. This compound is particularly relevant for researchers and manufacturers in the pharmaceutical and fine chemical industries, where it is used in the development of active pharmaceutical ingredients (APIs), fragrances, and other high-value specialty chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of prostaglandins, steroids, and other bioactive molecules with specific stereochemical requirements.
• Fine Chemical Synthesis: Used as a building block in the production of complex natural products, flavors, and fragrances due to its reactive functional groups.
• Asymmetric Catalysis Research: Employed as a substrate or ligand precursor in the development of new catalytic asymmetric reactions.
• Agrochemical Development: Serves as an intermediate in the synthesis of novel, optically active pesticides and plant growth regulators.
• Material Science Precursor: Potential use in the synthesis of specialized polymers or organic electronic materials with tailored properties.

Basic Information

Product Name	(4S)-Hydroxy-3-Methyl-2-(2-Propenyl)-2-Cyclopentene-1-One
CAS No.	22373-75-7
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	(4S)-3-Methyl-2-(2-propen-1-yl)-2-cyclopenten-1-one-4-ol; (4S)-4-Hydroxy-3-methyl-2-(2-propenyl)-2-cyclopenten-1-one; 4-Hydroxy-3-methyl-2-(2-propenyl)-2-cyclopenten-1-one, (4S)-; Allyl dihydrojasmonate precursor; Chiral Hydroxy Methyl Allyl Cyclopentenone
EINECS	Contact for details

Quality Control

We maintain strict quality control protocols for our chiral intermediates. Each batch of (4S)-Hydroxy-3-Methyl-2-(2-Propenyl)-2-Cyclopentene-1-One is analyzed to ensure high chemical and optical purity, with specifications typically covering identity, assay, enantiomeric excess (e.e.), and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing the results from tests such as HPLC, chiral chromatography, and NMR is provided with every shipment to guarantee traceability and compliance with your research or production standards.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) to minimize oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area, away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% e.e.
Specific Rotation	Contact for details
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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