二甲苯酚或二甲基苯酚是一种两个甲基和一个羟基连接在一个芳香环上得化合物。它因为甲基和酚羟基的不同位置而一共存在6个异构体。

6个二甲苯酚的物理性质十分相近

Xylenols are organic compounds with the formula (CH₃)₂C₆H₃OH. They are volatile colorless solids or oily liquids. They are derivatives of phenol with two methyl groups and a hydroxyl group. Six isomers exist, of which 2,6-xylenol with both methyl group in an ortho position with respect to the hydroxyl group is the most important. The name xylenol is a portmanteau of the words xylene and phenol.