Preparation of six 0-carbanillnobenzamldoxlmes, 2a4, startlng from benzamldoxknes, la-f, Is described. Spectroscoplc results are In accord wlth the structure asdgnment. Compounds Pa- f were tested agalnst bacteria and fungi. Only two, vlz., O-carbanlllnobenzamldoxi", 2a, and O-carbanillno-o-tohamidoxime, 2b, showed actlvlty. The former lnhlbked the growth of Escherlchla CON and