Synonyms: BRN 0674446;10,11-dihydro-5'h-spiro[dibenzo[a,d][7]annulene-5,4'-imidazolidin]-5'-one;Spiro(dibenzo(a,d)cycloheptadiene-5,4'-imidazolidin)-5'-one;Spiro(5H-dibenzo(a,d)cycloheptene-5,4'-imidazolidin)-5'-one, 10,11-dihydro-;64036-59-5;AC1L3IHD;AC1Q6P0M;AR-1C0034;LS-146078