I-Chloranil (i-tetrachloro-1,4-benzoquinone, C6Cl4O2) — okuqinile okuyi-crystal okuphuzi okusetshenziswa ekwakheni amakhemikhali aphilayo njengomsizi we-oxidation, njenge-reagent yokukhipha i-hydrogen, nanjengento ephakathi ekwenzeni udayi nemithi yezinambuzane. Iyacasula isikhumba — yiphathe ngamagilavu nasendaweni enomoya.