2,4-IMIDAZOLIDINEDIONE, 5-(2-(4-CHLOROPHENYL)-2-OXOETHYLIDENE)- 5-(2-(4-Chlorophenyl)-2-oxoethylidene)-2,4-imidazolidinedione 5-24-09-00329 (Beilstein Handbook Reference) 67917-92-4 BRN 0793213