Even though aspirin is named acetylsalicylic acid, aspirin contains the ester configuration due to the chemical reaction of a carboxyl group of the salicylic acid and acetic acid.

Question

Quizplus · Accepted Answer

Aspirin (acetylsalicylic acid) indeed contains an ester linkage formed by the reaction between the carboxyl group of salicylic acid and the acetyl group from acetic acid, replacing the hydrogen atom of the carboxyl group with an acetyl group.

Even Though Aspirin Is Named Acetylsalicylic Acid, Aspirin Contains the Ester