Should a solution with minoxidil be made with pure ethanol and not with some disinfectant alcohol?

Let me say that the council using pure ethanol (ethanol, internal use) is based on the occurrence of allergic reactions with ungenerated alcohol. These allergic reactions were attributed to the presence of ether. If one uses alcohol present in isopropanol, this ungenerated alcohol can be used to prepare a   minoxidil solution.

So, when preparing a minoxidil solution, attention should be paid to   the     use of the disinfectant for the oxidation of the ethanol.