TOOLS Ethidium Bromide (EtBr)/ Nuclease Eraser is a stable/non-toxic solution effectively remove and inactivated EtBr and RNase/DNase.The eraser should be stored at room temperature. Incubate Eraser at 37°C if precipitates form. After contact with Eraser, if skin irritation or rash occurs, seek medical attention. This product has been demonstrated to inactivate better than 20μg of RNase A dried powder onto the bottom of a microcentrifuge tube.