We must pick the correct chemical name for the common painkiller aspirin.
Sodium salicylate is a salt of salicylic acid, used as a food preservative and older analgesic, but it is not aspirin.
Methyl salicylate is the compound found in wintergreen oil, used for muscle rubs, not the same drug.
Ethyl salicylate is not the standard name linked to aspirin at all.
Acetylation of the phenolic -OH group of salicylic acid with acetic anhydride gives $\mathrm{CH_3COOC_6H_4COOH}$, which is acetyl salicylic acid, the actual chemical identity of aspirin tablets.