CH3OSO2, also known as methyl sulfonate, is an organic compound that contains a methyl group (CH3) attached to a sulfonate group (SO2). It is often used in chemical synthesis and can serve as a reagent in various organic reactions. The presence of the sulfonate group makes it a good leaving group, which is useful in nucleophilic substitution reactions. This compound is part of a larger class of sulfonates, which are characterized by the presence of a sulfur atom bonded to oxygen atoms. Methyl sulfonate can be found in various applications, including pharmaceuticals and agrochemicals, due to its reactivity and ability to form stable compounds with other molecules.