Description

1-Cyclopentene-1-Methanol, 4,4-Dimethyl-α-Methylene- (9Ci) is a specialized, high-value organic intermediate featuring a reactive methylene group on a functionalized cyclopentene ring. This compound matters for its unique structural motif, which makes it a versatile building block for synthesizing complex molecules in advanced research and development. It is primarily needed by pharmaceutical and agrochemical R&D teams, as well as by fine chemical manufacturers focused on creating novel compounds with specific steric and electronic properties.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for candidates with cyclopentane-based core structures.
• Agrochemical Synthesis: Used in the development of novel pesticides and herbicides, where its dimethyl-substituted ring can impart specific biological activity and stability.
• Fine Chemical Building Block: Employed in organic synthesis for constructing complex natural product analogs, flavors, and fragrances due to its reactive olefin and alcohol functionalities.
• Material Science Research: Acts as a monomer or cross-linking agent in polymer chemistry research for developing specialty resins and advanced polymeric materials.
• Catalyst Ligand Precursor: Utilized in the synthesis of novel ligand systems for asymmetric catalysis and organometallic chemistry applications.

Basic Information

Product Name	1-Cyclopentene-1-Methanol, 4,4-Dimethyl-α-Methylene- (9Ci)
CAS No.	760124-62-7
Molecular Formula	C9H14O
Molecular Weight	138.21 g/mol
Synonyms	4,4-Dimethyl-α-methylene-1-cyclopentene-1-methanol; 4,4-Dimethyl-α-methylidene-1-cyclopentene-1-methanol; (4,4-Dimethyl-1-cyclopenten-1-yl)methanol, α-methylidene-; 1-Cyclopentene-1-methanol, 4,4-dimethyl-α-methylene-; α-Methylene-4,4-dimethyl-1-cyclopentene-1-methanol
EINECS	Contact for details

Quality Control

Every batch of 1-Cyclopentene-1-Methanol, 4,4-Dimethyl-α-Methylene- (9Ci) is produced and tested under strict quality management protocols to ensure consistency and purity for research and development applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as identity, purity, and impurity profiles. Our commitment to quality supports your critical synthesis work with reliable, high-grade chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is light-sensitive and should be handled accordingly to maintain stability.

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.