803528 Diacetyl, Merck

Diacetyl is a vicinal diketone with the chemical formula (CH₃CO)₂. It is a yellowish to green liquid with a very intense, buttery odor. In synthetic chemistry, it is primarily used as a precursor for the synthesis of various nitrogen-containing heterocycles, such as quinoxalines and imidazoles, through condensation reactions with diamines. Due to its reactive dione structure, it also serves as a specialized ligand in coordination chemistry. This "for synthesis" grade ensures a high level of purity suitable for routine laboratory scale-up and industrial synthetic processes.

Advantages

• High purity (≥98.0%) ensuring consistent yields in organic condensation reactions.
• Versatile synthetic intermediate for the pharmaceutical and fragrance industries.
• Excellent solubility in water, ethanol, and ether.
• Strictly controlled physical properties (density, refractive index) for process reliability.
• Reliable "for synthesis" quality suitable for academic research and industrial manufacturing.

Instructions for use

Diacetyl is a highly flammable liquid and should be handled away from heat, sparks, and open flames. It has a low flash point and a strong odor, so it must be used in a high-efficiency fume hood with appropriate personal protective equipment (nitrile gloves, safety goggles). It is sensitive to air and light; keep the container tightly sealed and store in a cool, dark place. For optimal stability, storage under an inert gas (nitrogen or argon) is recommended. Avoid contact with strong oxidizing agents and strong bases.

Technical specifications

Available packaging options