"o,p'-DDT"@it . . . . . "2,2,2,o,p'-pentachloroethylidenebisbenzene"@en . "2,2,2,o,p'-pentachloroethylidenebisbenzene — CAS Identifier: 789-02-6"@en . "o,p'-DDT — Codice CAS: 789-02-6"@it . "CAS:789-02-6" . .