score:4
According to "Goods, prohibited or limited for transfer via the customs border of the Eurasian Economic Union" (where Russia is a member state),
List of the goods for the personal usage, prohibited to import into the customs territory of the Eurasian Economic Union (hereinafter - the Union) and (or) export from the territory of the Union
includes
3.4 poisonous substances, which are not the precursors of the narcotic drugs and psychotropic substances
Unfortunately, I am not able to find the list of poisonous substances in English, only in Russian (even though the page you download the list from is in English). Anyhow, methanol is number 15 there.
Edit: If you would like to bring ethanol to Russia, you are allowed to do so (up to 5 liters). However, according to Decision of the Council of the Eurasian Economic Commissionββ dated 20.12.2017 N 107 (as amended on 01.11.2018) "On certain issues related to the goods for the personal use" (only in Russian), you need to pay 22 EUR for each liter.