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perchlorbenzene
perchlorbenzene n. 
/pəˌklɔːbɛnˈziːn/, /pərˌklɔrˌbɛnˈzin/
Brit. /pəˌklɔːˈbɛnziːn/
, /pəˌklɔːˈbɛnziːn//pəˌklɔːbɛnˈziːn/U.S. /pərˌklɔrˈbɛnˌzin/
, /pərˌklɔrˈbɛnˌzin//pərˌklɔrˌbɛnˈzin/ΚΠ
1873 I. Remsen tr. R. Fittig Wöhler's Outl. Org. Chem. 275 When the attempt is made to replace the last hydrogen-atom in toluene, the molecule breaks up, and perchlorbenzene is formed.
2000 Hazardous Materials Managem. Mag. (Nexis) Mar. 16 HCB, perchlorobenzene, esachlorobenzene, pentachlorophenyl chloride and phenyl perchloryl.
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