Which of the following esters is commonly used in medicine?

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Methyl salicylate, also known as oil of wintergreen, is an ester of salicylic acid and methanol. It is widely used in medicine as a topical analgesic and rubefacient to relieve muscle and joint pain, commonly found in ointments and liniments. Ethyl acetate and methyl acetate are primarily used as solvents, while ethyl benzoate is used in perfumery and artificial flavors. Answer: Methyl salicylate