Acetanisole is an aromatic chemical compound with an aroma described as sweet, fruity, nutty, and similar to vanilla.

[3] Its chemical names are based on considering the structure as either an acetyl (methyl-ketone) analog of anisole.

Acetanisole is found naturally in castoreum, the glandular secretion of the beaver.

[1] Acetanisole can be prepared synthetically by Friedel-Crafts acylation of anisole with acetyl chloride: It is used as a cigarette additive,[4] a fragrance,[1] and a flavoring in food.

[5] 4-Methoxyacetophenone is a standard substrate or product of much research, such as transfer hydrogenation[6] and directed arylations.