1-Indanone is the organic compound with the formula C6H4(CH2)2CO. It is one of two isomeric benzocyclopentanones, the other being 2-indanone. It is a colorless solid. 1-Indanone is a substrate for the enzyme indanol dehydrogenase.
1-Indanone is an intermediate in the synthesis of a variety of pharmaceutical drugs including 2-aminoindane (using beta-keto-oxime formation with isoamylnitrite followed by reduction), drinidene, pirandamine,[2] and pyrophendane.