Dimethyl Carbonate
CAS Number: 616-38-6
Dimethyl carbonate (DMC) is a green, low-toxicity carbonate monomer and methylating/carbonylating reagent used in polycarbonate synthesis via melt transesterification with bisphenol A. DMC is also an important electrolyte solvent for lithium-ion batteries and a methoxycarbonylation reagent in pharmaceutical synthesis, increasingly replacing toxic methyl chloride and phosgene.
Technical Specifications
| appearance | Colorless transparent liquid |
| purity (%) | ≥99.9 |
| color (Pt-Co) | ≤5 |
| water content (ppm) | ≤30 |
| acidity (as formic acid, ppm) | ≤5 |
Applications
- Polycarbonate production via melt transesterification with BPA
- Lithium-ion battery electrolyte solvent co-solvent
- Eco-friendly methylation reagent replacing dimethyl sulfate
- Polyurethane polycarbonate diol synthesis
- Carbamate and carbonate pharmaceutical intermediate
Key Features
- Phosgene-free polycarbonate route enables safer and greener production
- Battery-grade with ultra-low water and halide content for stable electrolyte performance
- Low toxicity and biodegradability versus dimethyl sulfate or methyl halides
- Dual functionality as solvent and reactive monomer simplifies process design
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CAS Number
616-38-6
Category
Polymer Synthesis ChemicalsAvailability
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