diethylstilbestrol ( des ) and four derivatives , viz . tetrafluoro-des , 3'-hydroxy-des , z , z-dienestrol and hexestrol , were examined for their abilities to form superoxide radicals and to induce dna strand breaks in the presence of horseradish peroxidase/hydrogen peroxide metabolism in a cell-free system .
C0012203
des
C0019467
hexestrol