1,1,1-trichloro-2,2-bis-(4-trifluoromethyl-phenyl)-ethane, also known as DDT (dichlorodiphenyltrichloroethane), is a synthetic chemical compound that was widely used as an insecticide during the mid-20th century. It is characterized by its white crystalline solid appearance and has the molecular formula C14H9Cl5. DDT was highly effective in controlling the spread of diseases like malaria and typhus by targeting mosquitoes, lice, and other disease-carrying insects. However, its persistence in the environment, bioaccumulation in the food chain, and potential harmful effects on wildlife led to its ban or restriction in many countries. Despite its historical significance, DDT is now recognized for its negative environmental impacts and is no longer used in most parts of the world.
The CAS Registry Mumber 384-96-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,8 and 4 respectively; the second part has 2 digits, 9 and 6 respectively. Calculate Digit Verification of CAS Registry Number 384-96: (5*3)+(4*8)+(3*4)+(2*9)+(1*6)=83 83 % 10 = 3 So 384-96-3 is a valid CAS Registry Number.