Description

trans-2,3,4,5-Tetramethyl-2-Cyclopentenone CAS NO 34103-90-7 is a high-purity, substituted cyclopentenone derivative characterized by its unique sterically hindered ketone structure. This compound is a valuable and versatile chiral building block and intermediate in advanced organic synthesis, prized for its ability to impart specific stereochemistry and functional groups into target molecules. It is essential for research and development chemists in the pharmaceutical, agrochemical, and fine chemical industries who require high-quality, reliable intermediates for complex synthesis.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of complex drug candidates, particularly those requiring specific stereocenters.
• Agrochemical Synthesis: Used in the development of advanced active ingredients for crop protection products.
• Fine Chemical Production: Acts as a precursor for fragrances, flavors, and other specialty chemicals where its methyl-substituted ring structure is beneficial.
• Academic & Industrial Research: A critical reagent in methodological development for asymmetric synthesis and catalysis studies.
• Material Science: Potential use as a monomer or building block for specialized polymers and advanced organic materials.

Basic Information

Product Name	trans-2,3,4,5-Tetramethyl-2-Cyclopentenone
CAS No.	34103-90-7
Molecular Formula	C9H14O
Molecular Weight	138.21 g/mol
Synonyms	2-Cyclopenten-1-one, 2,3,4,5-tetramethyl-, (2E)-; (2E)-2,3,4,5-Tetramethyl-2-cyclopenten-1-one; trans-2,3,4,5-Tetramethylcyclopent-2-enone; 2,3,4,5-Tetramethyl-2-cyclopentenone; Tetramethylcyclopentenone
EINECS	Contact for details

Quality Control

Our trans-2,3,4,5-Tetramethyl-2-Cyclopentenone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing batch-specific results are provided to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids and incompatible materials. Recommended storage temperature is 2-8°C for long-term stability. Keep container tightly sealed when not in use to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Rotation	Contact for details

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