NCIt definition : A white, volatile, solid polycyclic hydrocarbon with a strong mothball odor. Naphthalene
is obtained from either coal tar or petroleum distillation and is primarily used to
manufacture phthalic anhydride, but is also used in moth repellents. Exposure to naphthalene
is associated with hemolytic anemia, damage to the liver and neurological system,
cataracts and retinal hemorrhage. Naphthalene is reasonably anticipated to be a human
carcinogen and may be associated with an increased risk of developing laryngeal and
colorectal cancer. (NCI05);