Description

Dimethyl Carbonate (DMC) is a versatile, low-toxicity organic compound with a high oxygen content, serving as a critical building block and green solvent in modern chemical synthesis. Its importance stems from its role as a safer, environmentally benign alternative to toxic methylating agents like dimethyl sulfate and methyl halides, as well as a phosgene substitute for polycarbonate production. This makes it essential for manufacturers in the pharmaceutical, agrochemical, battery electrolyte, and specialty polymer industries seeking sustainable and efficient process solutions.

Application

• Methylating Agent: A key, safer reagent for O- and N-methylation reactions in pharmaceutical and fine chemical synthesis.
• Polycarbonate Production: Used as a phosgene substitute in the transesterification process to manufacture polycarbonate resins.
• Lithium-Ion Battery Electrolyte: Acts as a co-solvent in electrolyte formulations, enhancing battery performance and stability.
• Solvent & Extractant: An effective, low-toxicity solvent for coatings, adhesives, and extraction processes.
• Fuel Additive: Investigated as an oxygenate to improve gasoline combustion and reduce emissions.
• Carboxymethylation Agent: Used in the synthesis of intermediates for agrochemicals and other specialty chemicals.

Basic Information

Product Name	Dimethyl Carbonate
CAS No.	616-38-6
Molecular Formula	C3H6O3
Molecular Weight	90.08 g/mol
Synonyms	DMC; Carbonic Acid Dimethyl Ester; Methyl Carbonate; Dimethyl Ester of Carbonic Acid; Methoxyformic Anhydride; Methyl Carbonate (VAN); UN 1161
EINECS	210-478-4

Quality Control

Our Dimethyl Carbonate is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical testing, including GC analysis for purity and impurity profiling, to meet the exacting requirements of our industrial and pharmaceutical partners. Certificates of Analysis (COA) are available for every batch upon request, detailing compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources, ignition points, and incompatible materials such as strong acids and bases. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.5%
Water Content (KF)	≤ 0.05%
Methanol Content (GC)	≤ 0.1%
Acidity (as CH3COOH)	≤ 0.02%
Density (20°C)	1.069 - 1.073 g/mL
Refractive Index (n20D)	1.368 - 1.372

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