Description

2,2,3,3-Tetramethyl-1-Cyclopropanecarboxylic Acid 2-Methyl-4-Oxo-3-(2-Propynyl)-2-Cyclopentenyl Ester is a specialized synthetic intermediate characterized by its unique cyclopropane and cyclopentenone ester structure. This compound matters for its role as a key building block in the synthesis of complex molecules, particularly in advanced agrochemical and pharmaceutical research. It is needed by R&D chemists and process development scientists in fine chemical, agrochemical, and pharmaceutical industries seeking to develop novel active ingredients.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of novel pyrethroid-like insecticides and acaricides, leveraging its cyclopropane moiety.
• Pharmaceutical Research: Serves as a sophisticated scaffold or intermediate in medicinal chemistry programs targeting new therapeutic agents.
• Fine Chemical Synthesis: Used in custom synthesis and contract manufacturing for producing high-value, complex organic compounds.
• Chemical Biology Probes: Utilized in the development of molecular probes and tool compounds due to its reactive alkyne (propynyl) group for click chemistry applications.
• Material Science Research: Investigated as a monomer or cross-linking agent for creating polymers with specific thermal or mechanical properties.

Basic Information

Product Name	2,2,3,3-Tetramethyl-1-Cyclopropanecarboxylic Acid 2-Methyl-4-Oxo-3-(2-Propynyl)-2-Cyclopentenyl Ester
CAS No.	51388-35-3
Molecular Formula	C16H22O3
Molecular Weight	262.35 g/mol
Synonyms	2-Methyl-4-oxo-3-(2-propynyl)-2-cyclopenten-1-yl 2,2,3,3-tetramethylcyclopropanecarboxylate; 3-(2-Propynyl)-2-methyl-4-oxo-2-cyclopenten-1-yl 2,2,3,3-tetramethylcyclopropanecarboxylate; Tetramethylcyclopropanecarboxylic Acid 2-Methyl-4-Oxo-3-(2-Propynyl)-2-Cyclopentenyl Ester; Propargyl Ester of Tetramethylcyclopropanecarboxylic Acid Cyclopentenone; Allethrin-type Ester Intermediate; (2-Methyl-4-oxo-3-prop-2-yn-1-ylcyclopent-2-en-1-yl) 2,2,3,3-tetramethylcyclopropane-1-carboxylate
EINECS	Contact for details

Quality Control

Our 2,2,3,3-Tetramethyl-1-Cyclopropanecarboxylic Acid 2-Methyl-4-Oxo-3-(2-Propynyl)-2-Cyclopentenyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request 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). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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