Description

4,4-Dimethyl-5-Methylen-1,3-Dioxolane-2-One is a specialized cyclic carbonate derivative with a reactive exocyclic methylene group. This unique structure makes it a valuable building block in organic synthesis, particularly for the preparation of functional polymers and advanced pharmaceutical intermediates. It is primarily sought by R&D chemists and process engineers in the fine chemical, polymer, and life science industries. The compound, identified by CAS No. 4437-80-3, offers a versatile platform for introducing carbonate functionalities into complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring carbonate or cyclic ester linkages.
• Polymer Chemistry: Acts as a monomer or co-monomer for producing specialty polycarbonates and other functional polymers with tailored properties.
• Organic Synthesis: Utilized as a versatile reagent for introducing the 1,3-dioxolane-2-one moiety into target molecules via reactions such as Michael additions or cycloadditions.
• Cross-linking Agent: Employed in the formulation of coatings, adhesives, and resins where its reactive double bond can participate in curing or cross-linking processes.
• Material Science Research: Used in developing novel biodegradable materials or polymers with specific degradation profiles.
• Ligand and Catalyst Synthesis: Functions as a starting material for creating complex chelating ligands or organocatalysts.

Basic Information

Product Name	4,4-Dimethyl-5-Methylen-1,3-Dioxolane-2-One
CAS No.	4437-80-3
Molecular Formula	C6H8O3
Molecular Weight	128.13 g/mol
Synonyms	5-Methylene-4,4-dimethyl-1,3-dioxolan-2-one; 4,4-Dimethyl-5-methylene-1,3-dioxolan-2-one; 2-Oxo-4,4-dimethyl-5-methylene-1,3-dioxolane; 5-Methylidene-4,4-dimethyl-1,3-dioxolan-2-one; Dimethyl methylene cyclic carbonate; DMMC
EINECS	Contact for details

Quality Control

Our 4,4-Dimethyl-5-Methylen-1,3-Dioxolane-2-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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