19-Aldehydo-4-androstene-3,17-dione 19-Aldoandrostenedione 19-Keto-delta(4) androstene-3,17-dione 19-Oxo-delta(4) androstene-3,17-dione 19-Oxoandrostenedione 4-Androstene-3,17-dione-19-al 968-49-0 Androst-4-en-19-al, 3,17-dioxo- (8CI)(9CI) NSC 76985