five chromium compounds , k2cr2o7 and k2cro4 containing cr6+ , and cr ( ch3coo ) 3 , cr ( no3 ) 3 and crcl3 containing cr3+ , were examined for their ability to induce chromosomal damage in cultures of human leukocytes , for their reactivity with dna by a rec-assay system and for mutagenicity in the e. coli hs30r test system .
C0079785
cr3
C0023516
leukocytes