both 2-amino-3,4-dimethyl-imidazo ] 4,5-f ] quinoline ( meiq ) and 2-amino-3,8-dimethyl-imidazo [ 4,5-f ] quinoxaline ( meiqx ) gave very weak responses for cell killing , hprt mutation induction and sister chromatid exchange .
C0007634
cell
C0037211
sister chromatid exchange