Description

Cyclopentyl Methacrylate CAS NO 16868-14-7 is a specialized methacrylate monomer featuring a cyclopentyl ester group. This compound is valued for its ability to impart unique properties to polymer chains, such as enhanced hydrophobicity, flexibility, and chemical resistance. It is primarily sought by manufacturers in the polymer and specialty chemical industries for producing advanced acrylic resins, coatings, adhesives, and optical materials.

Application

• High-Performance Acrylic Polymers: A key monomer for synthesizing specialty acrylic and methacrylic copolymers with tailored glass transition temperatures (Tg).
• Advanced Coatings & Inks: Used in formulating UV-curable, automotive, and industrial coatings that require excellent weatherability, adhesion, and low shrinkage.
• Optical Materials: A critical component in the production of optical lenses, light-guiding plates, and other transparent plastics where clarity and refractive index are controlled.
• Pressure-Sensitive Adhesives (PSAs): Modifies the tack, peel strength, and shear resistance of acrylic adhesive formulations.
• Dental & Biomedical Materials: Employed in the development of dental composites and bone cements due to its biocompatibility and polymerization characteristics.
• Lithography & Photoresists: Serves as a monomer in chemical amplification resists for semiconductor manufacturing.

Basic Information

Product Name	Cyclopentyl Methacrylate
CAS No.	16868-14-7
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	2-Methyl-2-propenoic acid cyclopentyl ester; Methacrylic acid cyclopentyl ester; Cyclopentyl 2-methylacrylate; Cyclopentyl methacrylate monomer; CPMA; Cyclopentyl 2-methylpropenoate
EINECS	240-904-3

Quality Control

Our Cyclopentyl Methacrylate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing assay, identity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 2-8°C under an inert atmosphere (e.g., nitrogen) to minimize oxidation and polymerization. Keep away from heat, sparks, and open flames. For long-term storage, monitor inhibitor levels as specified.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Inhibitor (MEHQ)	50 - 150 ppm
Acidity (as Methacrylic Acid)	≤ 0.5%

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