Dertil kom, at methyleringen af guanin N7 i én undersøgelse var 50 gange højere efter peroral administration af UDMH til rotter end den, der ifølge de tilsvarende data for daminozid var konstateret for dette stof.
In addition, methylation of N7 guanine was found to be 50-fold higher in one study following oral administration of UDMH to rats, when compared to the corresponding data for daminozide.