Novel (hydrocarbylphenylsulfonyl)alkyltrimethyl stannanes and a process for preparing same are disclosed. These stannane compounds correspond to the following formula: ##SPC1## Wherein R' is the same or different and is selected from the group consisting of linear and branched alkyl having 1 to 20 carbon atoms, cycloaliphatic having 4 to 6 carbon atoms and linear and branched alkenyl having 2 to 20 carbon atoms, m is an integer from 1 to 3 and n is an integer from 2 to 11. The stannane compounds of this invention exhibit insecticidal properties when employed in insecticidal formulations.