Description

Cyclopentene, 1-Ethynyl-2-(1-Propynyl)- (9Ci) is a specialized, high-value organic building block characterized by its unique diyne-substituted cyclopentene core structure. This compound is of significant interest in advanced organic synthesis and materials science due to its reactive alkyne functional groups, which enable complex cycloaddition and polymerization reactions. It serves as a critical precursor for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of complex, biologically active molecules and potential drug candidates.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and insecticides with new modes of action.
• Specialty Polymer & Material Science: Acts as a monomer or cross-linking agent for creating polymers with tailored thermal, optical, or mechanical properties.
• Organic Synthesis Building Block: Utilized in Diels-Alder reactions, click chemistry, and other cycloadditions to construct complex polycyclic frameworks.
• Ligand & Catalyst Development: Employed in the preparation of novel ligands for transition metal catalysis and organometallic chemistry.
• Academic & Industrial R&D: A valuable reagent for exploratory chemistry in university and corporate research laboratories.

Basic Information

Product Name	Cyclopentene, 1-Ethynyl-2-(1-Propynyl)- (9Ci)
CAS No.	422530-96-9
Molecular Formula	C10H10
Molecular Weight	130.19 g/mol
Synonyms	1-Ethynyl-2-(1-propynyl)cyclopentene; 1-Ethynyl-2-prop-1-yn-1-ylcyclopentene; 2-(1-Propynyl)-1-ethynylcyclopentene; 1,2-Diethynylcyclopentene derivative; Cyclopentene derivative, 1-ethynyl-2-(1-propynyl)-; (9CI) Index name
EINECS	Contact for details

Quality Control

Our Cyclopentene, 1-Ethynyl-2-(1-Propynyl)- (9Ci) is produced under strict quality management protocols. Every batch undergoes comprehensive analytical testing, including NMR, GC, and HPLC, to ensure high purity and batch-to-batch consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting identity, purity, and impurity profiles. We adhere to cGMP principles where applicable to support our customers in regulated research and development.

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 may be sensitive to prolonged exposure to air and moisture; it is recommended to store under an inert atmosphere such as nitrogen or argon for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Purity (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.