Potassium tert-butoxide Basic Information CAS: 865-47-4 MF: C4H9KO MW: 112.21 EINECS: 212-740-3 Mol File: 865-47-4.mol Potassium Tert-butoxide Structure Potassium Tert-butoxide Chemical Properties Melting point 256-258 °C (dec.)(lit.) Boiling point 275°C density 0.910 g/mL at 20 °C Potassium Tert-butoxide Application 1. Used in pesticides, medicines, printing and dyeing, catalysts, etc. 2. As a strong base, it is widely used in the condensation, rearrangement and ring opening reactions in organic synthesis such as chemical, pharmaceutical and pesticide. 3. It is a moderately strong base commonly used in organic synthesis. 4. The reason why t-BuOK is widely used is that it is inexpensive and readily available, and its basicity changes depending on the selected reaction solvent. 5