Description

2-(2-Pentynyl)-2-Cyclopentenone is a specialized organic building block featuring a cyclopentenone core functionalized with a pentynyl side chain. This compound matters as a versatile intermediate for synthesizing complex molecules, particularly in pharmaceutical and agrochemical research where its unique alkyne and ketone functionalities enable diverse chemical transformations. It is needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and advanced material sectors for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of potential active pharmaceutical ingredients (APIs), especially those with cyclic frameworks.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Acts as a precursor for specialty polymers and advanced organic materials with tailored properties.
• Organic Synthesis Building Block: Utilized in cycloaddition reactions, conjugate additions, and other C-C bond forming processes in academic and industrial laboratories.
• Fragrance & Flavor Chemistry: Potential intermediate for creating complex aroma molecules due to its unsaturated ketone structure.

Basic Information

Product Name	2-(2-Pentynyl)-2-Cyclopentenone
CAS No.	29119-44-6
Molecular Formula	C10H12O
Molecular Weight	148.20 g/mol
Synonyms	2-(Pent-2-yn-1-yl)cyclopent-2-en-1-one; 2-(2-Pentyn-1-yl)-2-cyclopenten-1-one; 2-Cyclopenten-1-one, 2-(2-pentynyl)-; 2-(1-Butynyl)-2-cyclopentenone (related); Cyclopentenone, 2-(2-pentynyl)-
EINECS	Contact for details

Quality Control

Our 2-(2-Pentynyl)-2-Cyclopentenone is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (by GC/HPLC), identity (IR, NMR), and impurity profiles are provided and available upon request to support your quality and regulatory needs.

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. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 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.