tert-Butyl Methyl Ether (MTBE)

tert-Butyl methyl ether (MTBE) is a colorless, highly flammable, volatile liquid, chemically known as (CH₃)₃COCH₃, primarily used as a gasoline additive to boost octane and reduce emissions, but also serves as a useful organic solvent, especially as a safer alternative to THF in reactions like Grignard synthesis, though it's sparingly soluble in water and can contaminate groundwater.