Hydroxymethyl refers to a functional group in organic chemistry that consists of a hydroxyl group (-OH) attached to a methyl group (-CH3). This structure can be found in various chemical compounds and is important in the study of organic reactions and synthesis. Hydroxymethyl groups can influence the properties and reactivity of molecules, making them significant in fields like pharmaceuticals and biochemistry. In addition to its role in organic chemistry, hydroxymethyl is often encountered in the context of formaldehyde, where it can form during chemical reactions. Compounds containing hydroxymethyl groups are used in various applications, including the production of resins and as intermediates in the synthesis of more complex molecules.