Description

1,2-Dioxolan-3-One, 5-Ethyl-5-Methyl-4-Methylene- is a specialized cyclic carbonate derivative with a reactive exocyclic methylene group, offering a unique bifunctional chemical handle for advanced synthesis. This compound matters for its role as a versatile building block in the development of high-performance polymers, fine chemicals, and pharmaceutical intermediates. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to introduce functional carbonate or diol motifs into complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for introducing carbonate or protected diol functionalities.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for producing specialty polycarbonates and polyurethanes with tailored thermal and mechanical properties.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Employed in multi-step organic synthesis to construct complex molecules for flavors, fragrances, and electronic chemicals.
• Material Science Research: Investigated for creating advanced polymeric materials, coatings, and resins with specific degradation or adhesion profiles.
• Cross-coupling & Functionalization: The reactive methylene group enables various coupling reactions to attach diverse molecular fragments.

Basic Information

Product Name	1,2-Dioxolan-3-One, 5-Ethyl-5-Methyl-4-Methylene-
CAS No.	136066-32-5
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	4-Methylene-5-ethyl-5-methyl-1,3-dioxolan-2-one; 5-Ethyl-5-methyl-4-methylene-1,3-dioxolan-2-one; Ethylmethylmethylene cyclic carbonate; Exo-methylene cyclic carbonate derivative; EC 136066-32-5
EINECS	Contact for details

Quality Control

Our 1,2-Dioxolan-3-One, 5-Ethyl-5-Methyl-4-Methylene- is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopy (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request. We are committed to meeting the stringent requirements of research and cGMP-guided production environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Any single unknown impurity	≤ 0.5%

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