Description

2-Cyclopentene-1-Carboxylicacid,1-Acetyl-2-Methyl-,2-Propynylester(9Ci) CAS NO 811784-55-1 is a specialized organic ester compound featuring a cyclopentene core functionalized with acetyl, methyl, and propargyl ester groups. This unique molecular architecture makes it a valuable high-purity intermediate for advanced chemical synthesis, particularly in the development of novel active pharmaceutical ingredients (APIs) and complex agrochemicals. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing complex molecular frameworks.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, especially those requiring a functionalized cyclopentene scaffold.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor for synthesizing specialty chemicals, flavors, and fragrances.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing polymers with specific thermal or mechanical properties.
• Academic & Industrial R&D: Employed in organic chemistry research for methodology development and exploring new reaction pathways.

Basic Information

Product Name	2-Cyclopentene-1-Carboxylicacid,1-Acetyl-2-Methyl-,2-Propynylester(9Ci)
CAS No.	811784-55-1
Molecular Formula	C12H14O3
Molecular Weight	206.24 g/mol
Synonyms	1-Acetyl-2-methyl-2-cyclopentene-1-carboxylic acid 2-propynyl ester; 2-Propynyl 1-acetyl-2-methyl-2-cyclopentene-1-carboxylate; Propargyl 1-acetyl-2-methyl-2-cyclopentene-1-carboxylate; 2-Methyl-1-acetyl-2-cyclopenten-1-carboxylic acid propargyl ester; (1-Acetyl-2-methyl-2-cyclopenten-1-yl) propargyl carbonate (related structure); CAS 811784-55-1
EINECS	Contact for details

Quality Control

Every batch of our 2-Cyclopentene-1-Carboxylicacid,1-Acetyl-2-Methyl-,2-Propynylester(9Ci) is manufactured under a strict quality management system. We provide comprehensive analytical data to ensure the material meets your precise research and development requirements. A Certificate of Analysis (COA) detailing purity, identity, and impurity profile is supplied with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for long-term stability. The compound may be moisture-sensitive; keep the container tightly sealed under an inert atmosphere if specified.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 0.5%

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