Ethanol on most chemical compatibility charts you will find is equal to at worst, but most often less corrosive than gasoline and BTX(benzene, toluene, and xylene).

If you have doubts, check out this one:

https://www.coleparmer.com/Chemical-Resistance

Or here for a second opinion:

http://www.graco.com/content/dam/graco/ipd/literature/misc/chemical-compatibility-guide/Graco_ChemCompGuideEN-B.pdf

Or here if you need a third opinion:

http://legacy.shurflo.com/pdf/industry/CCChart.pdf