Description

4-Methylcyclopentene is a highly volatile, unsaturated cyclic hydrocarbon with significant utility as a versatile chemical intermediate. Its unique structure makes it a valuable building block for synthesizing more complex organic molecules in research and industrial settings. This compound is particularly relevant for manufacturers and R&D laboratories in the fine chemical, pharmaceutical, and polymer sectors seeking specialized olefinic precursors. CAS NO 1759-81-5.

Application

4-Methylcyclopentene serves as a key intermediate in various synthetic pathways. Its primary applications include:

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules requiring functionalized cyclopentane rings.
• Fine Chemical Synthesis: Acts as a precursor for catalysts, ligands, and specialty chemicals used in asymmetric synthesis and material science.
• Polymer & Resin Modification: Employed as a comonomer or cross-linking agent to modify the properties of polymers, influencing flexibility and thermal stability.
• Fragrance & Flavor Chemistry: Utilized in the research and development of synthetic aroma compounds due to its hydrocarbon backbone.
• Organic Synthesis Research: A valuable reagent in academic and industrial R&D for studying cycloaddition reactions, hydrogenation, and other catalytic processes.
• Agrochemical Intermediate: Can be used in the production pathway for certain specialty agrochemicals.

Basic Information

Product Name	4-Methylcyclopentene
CAS No.	1759-81-5
Molecular Formula	C6H10
Molecular Weight	82.14 g/mol
Synonyms	4-Methyl-1-cyclopentene; 1-Cyclopentene, 4-methyl-; 4-Methylcyclopent-1-ene; NSC 73945; Methylcyclopentene; 4-MCP
EINECS	217-170-7

Quality Control

Our 4-Methylcyclopentene is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing purity and impurity profiles. Our quality systems are designed to meet the stringent requirements of GMP and ISO standards where applicable, supporting its use in regulated synthesis.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated place away from heat, sparks, and open flames. Recommended storage temperature is 2-8°C to minimize evaporation and maintain stability. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Related Impurities (GC)	≤ 2.0% total

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