Description

Methyl 4-Methyl-2-Methylenepentanoate is a specialized, highly volatile ester monomer with significant utility in advanced polymer synthesis. Its unique structure, featuring a reactive methylene group, makes it a valuable building block for creating tailored polymers with specific properties. This compound is primarily sought by R&D chemists and production engineers in the specialty polymer, adhesive, and coating industries for developing novel materials with enhanced performance characteristics.

Application

• Specialty Polymer Synthesis: Serves as a key monomer for the production of acrylic and methacrylic copolymers with tailored glass transition temperatures and mechanical properties.
• Adhesive Formulations: Used in the development of pressure-sensitive adhesives (PSAs) and structural adhesives to modify tack, peel strength, and cross-linking density.
• Coating Resins: Incorporated into solvent-borne and high-solid coating formulations to improve film flexibility, durability, and weathering resistance.
• Chemical Intermediate: Acts as a reactive intermediate in organic synthesis for pharmaceuticals and agrochemicals, leveraging its ester and alkene functionalities.
• Cross-linking Agent: Utilized in radiation-curable systems (e.g., UV-curable inks and coatings) due to its polymerizable double bond.
• Flavor & Fragrance Industry: Potential use as a precursor for synthesizing specific ester notes, subject to purity and regulatory compliance.

Basic Information

Product Name	Methyl 4-Methyl-2-Methylenepentanoate
CAS No.	3070-69-7
Molecular Formula	C8H14O2
Molecular Weight	142.20 g/mol
Synonyms	2-Methylene-4-methylpentanoic Acid Methyl Ester; Methyl 4-Methyl-2-methylenepentanoate; Methyl 2-Methylene-4-methylvalerate; 4-Methyl-2-methylenepentanoic Acid Methyl Ester; 3070-69-7; Methyl ester of 4-methyl-2-methylenepentanoic acid
EINECS	Contact for details

Quality Control

Every batch of Methyl 4-Methyl-2-Methylenepentanoate is produced and tested under a strict quality management system. We ensure high purity and consistent performance through rigorous in-process controls and final analytical testing via GC, HPLC, and NMR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature: 2-8°C for long-term stability, or at controlled room temperature (15-25°C) for short-term use. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.420 - 1.424
Density (20°C)	0.88 - 0.92 g/mL

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