Description

1-Cyclopentylprop-2-yn-1-one is a specialized alkyne-containing ketone building block with the CAS registry number 70639-95-1. This compound is valued for its unique cyclopentyl and propynone functional groups, which make it a versatile intermediate in advanced organic synthesis. It is primarily sought after by research and development chemists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for introducing specific ring systems and alkyne functionalities.
• Agrochemical Synthesis: Used in the creation of advanced pesticide and herbicide candidates, leveraging its reactive ketone and alkyne groups for structural diversification.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers and advanced organic materials with tailored properties.
• Chemical Research & Development: Employed as a fundamental building block in academic and industrial R&D for exploring new organic reactions and catalytic processes.
• Fine Chemical Production: Utilized in the multi-step synthesis of complex fragrance, flavor, and dye intermediates.

Basic Information

Product Name	1-Cyclopentylprop-2-yn-1-one
CAS No.	70639-95-1
Molecular Formula	C8H10O
Molecular Weight	122.16 g/mol
Synonyms	1-Cyclopentyl-2-propyn-1-one; Cyclopentyl propynyl ketone; 3-Cyclopentyl-3-oxo-1-propyne; 1-Cyclopentylprop-2-yn-1-one; 70639-95-1; Cyclopentyl ethynyl ketone; Propynyl cyclopentyl ketone
EINECS	Contact for details

Quality Control

Our 1-Cyclopentylprop-2-yn-1-one is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including identification (IR, NMR), purity assay (HPLC/GC), and impurity profiling to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

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

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