2,3,5-Trichloro-1,4-benzenediol

2,3,5-trichlorobenzene-1,4-diol is a member of the class of chlorohydroquinones that is hydroquinone in which three of the four hydrogens attached to the benzene ring have been replaced by chlorines. It is a conjugate acid of a 2,3,6-trichloro-4-hydroxyphenolate.