Description

Cyclopentene, 2-Ethynyl-1-Methyl-3-(1-Methylethyl)- (9Ci) is a specialized organic compound featuring a cyclopentene core substituted with an ethynyl group and an isopropyl moiety, making it a valuable building block in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of complex molecular architectures, particularly in pharmaceutical and agrochemical research. It is needed by R&D chemists and process development scientists working on novel active ingredients, fine chemicals, and functional materials where precise structural control is paramount.

Application

• Pharmaceutical Intermediate: Serves as a critical synthon in the multi-step synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its unique carbon skeleton.
• Material Science: Acts as a precursor for specialty polymers, liquid crystals, or organic electronic materials due to its reactive alkyne functionality.
• Organic Synthesis: Employed in cycloaddition reactions, cross-coupling, and other catalytic transformations to construct complex, polycyclic structures.
• Flavor & Fragrance Chemistry: Potential use in the synthesis of novel terpene-like aroma compounds and specialty odorants.
• Academic & Industrial R&D: A valuable tool for methodological studies and exploring new reaction pathways in synthetic chemistry laboratories.

Basic Information

Product Name	Cyclopentene, 2-Ethynyl-1-Methyl-3-(1-Methylethyl)- (9Ci)
CAS No.	126133-05-9
Molecular Formula	C11H16
Molecular Weight	148.25 g/mol
Synonyms	2-Ethynyl-1-methyl-3-(propan-2-yl)cyclopentene; 2-Ethynyl-1-methyl-3-isopropylcyclopentene; 1-Methyl-3-isopropyl-2-ethynylcyclopentene; 3-Isopropyl-1-methyl-2-ethynylcyclopentene; 2-Ethynyl-1-methyl-3-(1-methylethyl)cyclopentene; (CAS 126133-05-9)
EINECS	Contact for details

Quality Control

Our Cyclopentene, 2-Ethynyl-1-Methyl-3-(1-Methylethyl)- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and structural confirmation, to ensure it meets the high standards required for research and development applications. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). This compound may be sensitive to prolonged exposure to air and moisture; it is recommended to store under an inert atmosphere for long-term stability.

Specification

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