👉 In chemistry, a chloromethyl group (CH3) is an organic compound that has a methyl group attached to its central carbon atom. Chloromethyl groups are known as chloromethanes and can be found in various chemical compounds. They have a net negative charge and form a polar molecule with a dipole moment. Chloromethyl groups can also undergo a reaction with other groups, forming more complex molecules, such as chiral compounds or salts.