the alkylating ( tepa , metepa , thiotepa , apholate ) and non-alkylating ( hempa , hemel ) chemosterilants have been tested in a screening programme together with 6 synergists of insecticides ( pieronylbutoxide , bucarpolate , sulfoxide , safroxan , demethylsulfoxide , s-421 ) for cumulative and synergistic effects .
C0039533
tepa
C0039871
thiotepa