Description

4,4-Dimethyl-1,3-Dioxolan-2-One is a high-purity cyclic carbonate ester, a versatile chemical intermediate valued for its unique reactivity. This compound is crucial for synthesizing advanced polymers, pharmaceuticals, and specialty chemicals, offering a reactive platform for ring-opening and transesterification reactions. It is primarily sought by R&D laboratories, fine chemical manufacturers, and polymer chemists in the pharmaceutical, agrochemical, and performance materials industries.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs.
• Polymer Chemistry: Used as a monomer or co-monomer for producing polycarbonates and other specialty polymers with tailored properties.
• Electrolyte Solvent: Investigated as a component in advanced electrolyte formulations for lithium-ion batteries due to its high dielectric constant and stability.
• Chemical Synthesis: Acts as a reactive solvent or protecting group reagent in organic synthesis, particularly for introducing carbonate functionalities.
• Agrochemicals: Employed in the manufacture of certain herbicides and plant growth regulators.
• Crosslinking Agent: Functions as a crosslinker in coatings, adhesives, and resin systems to enhance durability and chemical resistance.

Basic Information

Product Name	4,4-Dimethyl-1,3-Dioxolan-2-One
CAS No.	4437-69-8
Molecular Formula	C5H8O3
Molecular Weight	116.12 g/mol
Synonyms	4,4-Dimethyl-1,3-dioxolan-2-one; 2-Oxo-4,4-dimethyl-1,3-dioxolane; 4,4-Dimethyl-2-oxo-1,3-dioxolane; Neopentylene carbonate; 2,2-Dimethyltrimethylene carbonate; DMTMC; 2,2-Dimethyl-1,3-dioxolan-4-one; 4,4-Dimethyl-2-oxo-1,3-dioxacyclopentane
EINECS	224-652-9

Quality Control

Our 4,4-Dimethyl-1,3-Dioxolan-2-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases, strong acids, and oxidizing agents. The product is moisture-sensitive; keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.420 - 1.430
Density (20°C)	1.15 - 1.20 g/cm³

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