108651-08-7 3',4'-Dihydro-2-thiospiro(imidazolidine-4,2'(1'H)-naphthalene)-2,5-dione 4-24-00-01555 (Beilstein Handbook Reference) 7,8-Benzo-1,3-diazaspiro(4.5)decane-4-one-2-thione BRN 0015093 S.2-846 Spiro(imidazolidine-4,2'(1'H)-naphthalene)-2,5-dione, 3',4'-dihydro-2-thio-