What is the IUPAC name of DDT?

What is the IUPAC name of DDT?Why is its use banned in many countries?

The IUPAC name of DDT is 2, 2-bis-(4-chlorophenyl)-l, 1,
1-trichloroethane. DDT is banned as it is non-biodegradable and deposits in fat tissues of animal and in long run affects their health adversely.