4-Hydroxy-3-methoxybenzaldehyde, is an organic compound with the molecular formula C8H8O3. It is a phenolic aldehyde. Its functional groups include aldehyde, hydroxyl, and ether. It is the primary component of the extract of the vanilla bean.
4-Hydroxy-3-methoxybenzaldehyde aiso known as Vanillin is an aromatic compound, and is used for flavoring foods. It is has biogenetic relationship to phenylpropanoid pathway. It is mostly used in foods, beverages, perfumes and pharmaceuticals.