DDT total comprises the sum of the isomers 1,1,1-trichloro-2,2 bis (p-chlorophenyl) ethane (CAS number 50-29-3; EU number 200-024-3); 1,1,1-trichloro-2 (o-chlorophenyl)-2-(p-chlorophenyl) ethane (CAS number 789-02-6; EU number 212-332-5); 1,1-dichloro-2,2 bis (p-chlorophenyl) ethylene (CAS number 72-55-9; EU number 200-784-6); and 1,1-dichloro-2,2 bis (p-chlorophenyl) ethane (CAS number 72-54-8; EU number 200-783-0).
DDT totaal omvat de som van de isomeren 1,1,1-trichloor-2,2-bis(p-chloorfenyl)ethaan (CAS-nummer 50-29 3), EU-nummer 200-024-3); 1,1,1-trichloor-2-(o-chloorfenyl)-2-(p chloorfenyl)ethaan (CAS-nummer 789-02-6), EU-nummer 212-332-5); 1,1-dichloor-2,2-bis(p-chloorfenyl)ethyleen (CAS-nummer 72-55-9) EU-nummer 200-784-6); en 1,1-dichloor-2,2-bis(p-chloorfenyl)ethaan (CAS-nummer 72-54-8).