According to this recently-published study in the Journal of Histotechnology, ” … experts are confident that 70% ethanol and 0.1% sodium hypochlorite should inactivate the virus. Formalin fixation and heating samples to 56oC, as used in routine tissue processing, were found to inactivate several coronaviruses and it is believed that 2019-nCoV would be similarly affected.”
Read the study: https://doi.org/10.1080/01478885.2020.1734718