Dimethyl Carbonate丨CAS 616-38-6

Dimethyl carbonate丨616-38-6 is a colorless, volatile liquid with the chemical formula (CH₃O)₂CO and CAS number 616-38-6. It is an ester of methanol and carbonic acid, often considered a green solvent due to its low toxicity, high biodegradability, and non-polluting properties. DMC is primarily used as a solvent, reagent, and an intermediate in the production of various chemicals, as well as a key component in synthesis reactions. It has diverse applications in industries such as pharmaceuticals, coatings, plastics, battery technologies, and cleaning agents.

1. Solvent in Industrial Applications
Dimethyl carbonate丨616-38-6 is widely used as a solvent in various chemical processes, particularly in the pharmaceutical and coating industries. As a polar aprotic solvent, DMC is effective in dissolving a wide range of organic compounds, making it an ideal choice for applications in these sectors.
● Pharmaceuticals: DMC is commonly used as a solvent in the synthesis of pharmaceuticals. It plays a crucial role in drug formulation, where it helps in dissolving active pharmaceutical ingredients (APIs) and ensuring uniform distribution in solid and liquid forms. The solvent is particularly valuable in the production of tablet coatings, injectables, and oral solutions.
● Coatings and Paints: Dimethyl carbonate is used as a solvent in paints, varnishes, and lacquers. It is favored in the coating industry due to its low toxicity and quick evaporation, allowing for faster drying times in products like automotive coatings, industrial coatings, and wood finishes.
● Adhesives and Sealants: DMC is incorporated into various adhesives, glues, and sealants. Its solvent properties help in the formulation of products that require rapid curing and high adhesion strength, such as those used in construction and automotive industries.
2. Chemical Synthesis and Reactions
Dimethyl carbonate丨616-38-6 is utilized in a variety of chemical reactions, particularly in the synthesis of polycarbonates and urethane derivatives. The compound serves as a methylating agent in organic chemistry, where it can react with nucleophiles to introduce a methyl group into the molecular structure of target compounds.
● Polycarbonate Production: Dimethyl carbonate is an important building block in the synthesis of polycarbonate plastics. It is used in the production of bisphenol-A (BPA), which is a key precursor to polycarbonates. Polycarbonates are widely used in the manufacturing of optical lenses, automotive parts, electronic components, and medical devices.
● Urethanes and Polyurethanes: DMC is involved in the synthesis of urethanes and polyurethane foams. As a reactive methylating agent, it can be used to produce methylated urethane derivatives, which are important components in the production of flexible foams, paints, coatings, and insulation materials.
● Transesterification Reactions: Dimethyl carbonate is commonly used in transesterification reactions, particularly in the conversion of epoxides and alcohols. The resulting methylated esters are useful in the production of biofuels, such as biodiesel, and in the synthesis of surfactants and biodegradable detergents.
3. Battery Technologies
Dimethyl carbonate has gained significant attention in battery technology, particularly in the formulation of lithium-ion (Li-ion) batteries.
● Solvent in Electrolytes: Dimethyl carbonate丨616-38-6 is used as a solvent in the electrolytes of lithium-ion batteries. Its high dielectric constant and stability at various temperatures make it an ideal choice for use in battery electrolytes, ensuring optimal performance in applications like electric vehicles (EVs), consumer electronics, and renewable energy storage.
● Improved Conductivity: As part of the electrolyte formulation, DMC improves the conductivity of the electrolyte, contributing to the efficiency of charge/discharge cycles and overall battery life.
4. Clean Energy and Environmental Applications
Dimethyl carbonate is increasingly recognized for its environmentally friendly properties, which align with the growing demand for sustainable chemistry.
● Green Solvent: DMC is considered a "green" solvent due to its low toxicity, biodegradability, and low environmental impact. It is a safer alternative to conventional solvents like tetrahydrofuran (THF) and dimethyl sulfoxide (DMSO), which are known for their toxicity and environmental hazards.
● Alternative to Phosgene: In the synthesis of polycarbonates, DMC is used as an alternative to phosgene, a toxic and hazardous chemical. This makes the production of polycarbonates more environmentally friendly and safer for workers and the surrounding ecosystem.
● Biodiesel Production: Dimethyl carbonate is used in the production of biodiesel through transesterification reactions. The methyl esters produced can serve as biofuels, contributing to the reduction of greenhouse gas emissions and supporting renewable energy initiatives.
5. Use in Cleaning Agents
Dimethyl carbonate is also utilized in various cleaning formulations, such as solvent-based cleaners, disinfectants, and degreasers.
● Degreasing Agents: DMC is effective in removing grease and oil-based stains from surfaces, making it a key ingredient in industrial cleaning products and automotive degreasers.
● Biodegradable Cleaning Products: Due to its high biodegradability and low toxicity, dimethyl carbonate is an attractive ingredient in the formulation of eco-friendly cleaning agents, which are safe for both humans and the environment.

1. Low Toxicity
One of the primary advantages of dimethyl carbonate is its low toxicity compared to traditional solvents. It has a relatively low acute toxicity, making it a safer alternative for use in industrial applications, personal care products, and pharmaceuticals. This characteristic reduces the health risks associated with handling and exposure to harmful chemicals.
● Reduced Health Risks: Workers in industries that use solvents benefit from the lower health risks associated with DMC. The compound has a lower potential for skin irritation and respiratory issues compared to harsher chemicals like benzene or toluene.
2. Biodegradability
Dimethyl carbonate is highly biodegradable, meaning it can be broken down by microorganisms in the environment, reducing the risk of long-term pollution. This makes it an ideal choice for industries that are working toward more sustainable and eco-friendly manufacturing processes.
● Environmental Friendliness: DMC's biodegradability contributes to its low environmental impact, especially when compared to other chemical solvents that persist in the environment for longer periods and may cause water and soil contamination.
3. Sustainability
Dimethyl carbonate's production process is more sustainable than traditional solvents, particularly because it can be synthesized from renewable resources such as methanol and carbon dioxide. This contributes to reducing reliance on fossil fuels and helps to mitigate climate change.
● Reduced Carbon Footprint: DMC can be produced using carbon dioxide as a feedstock, which not only provides a sustainable source of carbon but also contributes to capturing and utilizing excess carbon from the atmosphere, helping to reduce overall greenhouse gas emissions.
4. Versatility in Applications
Dimethyl carbonate丨616-38-6 is a highly versatile compound that can be used across multiple industries. Its ability to act as a solvent, intermediate, and chemical reagent in various chemical reactions gives it a wide range of applications, from pharmaceuticals to battery technologies and green chemistry.
● Wide-Ranging Industrial Use: DMC's applications extend across numerous sectors, including plastics, adhesives, cleaning agents, biofuels, and electronics, providing a sustainable solution in diverse manufacturing processes.
5. Alternative to Harmful Chemicals
In many cases, DMC serves as a safer, more sustainable alternative to toxic chemicals traditionally used in industrial processes. For instance, its use as a polycarbonate precursor offers a safer alternative to phosgene, a highly toxic substance used in the conventional method of polycarbonate production.

Dimethyl carbonate丨616-38-6 is a versatile and eco-friendly compound with a broad range of applications in industries such as pharmaceuticals, coatings, plastics, battery technologies, and cleaning agents. Its primary benefits include low toxicity, biodegradability, and sustainability, making it an attractive