Di-.pi.-methane rearrangements of highly sterically congested molecules: inhibition of free-rotor energy dissipation. Mechanistic and exploratory organic photochemistry
The present invention provides a liquid deodorant suitable for deodorization of spaces and fiber products, and a hair cosmetic and skin cosmetic having a high deodorization effect. Here, any of the hair cosmetic and skin cosmetic may be that referred to as a body deodorant. Namely, the present invention provides a deodorant comprising a deodorant organic dibasic acid composed of an organic dibasic acid and/or salt thereof having a difference between the first acid dissociation index (hereinafter, abbreviated as first acid dissociation index) and the second acid dissociation index (hereinafter, abbreviated as second acid dissociation index or pK2) of 1.7 or more at 25°C.