118-75-2

Yellow powder with a slight odor.

CHLORANIL(118-75-2) is sensitive to excessive light and heat. This chemical is incompatible with strong oxidizing agents. CHLORANIL(118-75-2) reacts with alkalis.

Insoluble in water.

Skin irritant.

Flash point data for this chemical are not available; however, CHLORANIL is probably combustible.

YELLOW-GREEN POWDER

Agricultural fungicide, dye intermediate, reagent. manufacture of electrodes for pH measurement.

antipsoriatic

Tetrachloro-1,4-benzoquinone is a potential intermediate in the process of pentachlorophenol-induced carcinogenicity.

ChEBI: A member of the class of 1,4-benzoquiones that is 1,4-benzoquinone in which all four hydrogens are substituted by chlorines.

Tetrahedron, 34, p. 1577, 1978 DOI: 10.1016/0040-4020(78)80185-9

Crystallise p-chloranil from acetic acid, acetone, *benzene, EtOH or toluene, dry it in a vacuum over P2O5, or from acetic acid and drying over NaOH in a vacuum desiccator. It can be sublimed under vacuum at 290o. A sample may contain significant amounts of the o-chloranil isomer as impurity. Purify it by triple sublimation under vacuum and recrystallise before use. It is a skin and mucous membrane irritant. [UV: Pummerer et al. Chem Ber 85 545 1952, Brook J Chem Soc 5040 1952, Beilstein 7 IV 2083.]