四羥基苯醌抑制劑Tetrahydroxy-1,4-benzoquinone also called tetrahydroxybenzoquinone, tetrahydroxy-p-benzoquinone, or tetrahydroxyquinone (THBQ, THQ). Its structural formula is C6O2(OH)4. Its molecular structure consists of two ketone groups in the opposite (para) sits and a cyclohexadiene ring with four hydroxyl groups.