Description

(S)-2,2,3-Trimethylcyclopent-3-Ene-1-Acetaldehyde CAS NO 23727-15-3 is a high-purity, chiral aldehyde building block of significant interest in advanced organic synthesis. Its unique sterically hindered cyclopentene structure and defined stereochemistry make it a valuable precursor for creating complex, optically active molecules. This compound is primarily sought by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in areas requiring specific stereochemistry.
• Agrochemical Synthesis: Used in the production of advanced, stereoselective pesticides and herbicides where the biological activity is highly dependent on molecular configuration.
• Fragrance and Flavor Chemistry: Serves as a building block for synthesizing complex terpenoid-like aroma molecules and specialty flavor compounds.
• Material Science Research: Employed in the development of novel chiral ligands for catalysis and advanced polymeric materials with specific optical properties.
• Academic and R&D Laboratories: A valuable reagent for methodological studies in asymmetric synthesis and total synthesis of natural products.

Basic Information

Product Name	(S)-2,2,3-Trimethylcyclopent-3-Ene-1-Acetaldehyde
CAS No.	23727-15-3
Molecular Formula	C₁₀H₁₆O
Molecular Weight	152.23 g/mol
Synonyms	(S)-2,2,3-Trimethylcyclopent-3-ene-1-acetaldehyde; (S)-2,2,3-Trimethyl-3-cyclopentene-1-acetaldehyde; (S)-2,2,3-Trimethylcyclopent-3-enecarbaldehyde; (S)-2,2,3-Trimethyl-3-cyclopenten-1-ylacetaldehyde; (S)-2,2,3-Trimethyl-1-cyclopentene-1-acetaldehyde; (S)-Cyclopenteneacetaldehyde, 2,2,3-trimethyl-; (S)-Apritone aldehyde precursor
EINECS	Contact for details

Quality Control

Our (S)-2,2,3-Trimethylcyclopent-3-Ene-1-Acetaldehyde is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as chiral purity (enantiomeric excess), chemical purity (by GC/HPLC), and identity confirmation. We support cGMP compliance for advanced applications and can provide material for FDA-regulated development projects upon request.

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 material is easily oxidized and light-sensitive; allow the sealed container to reach room temperature before opening to minimize moisture ingress and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Chiral Purity (Chiral GC/HPLC)	≥ 98.0% e.e.
Water Content (KF)	≤ 0.5%

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