1-(4-Chlorophenyl)-2,5-dioxo-4-imidazolidineacetic acid 1-(p-Chlorophenyl)-2,5-dioxo-4H-imidazolidineacetic acid 4-Imidazolidineacetic acid, 1-(4-chlorophenyl)-2,5-dioxo- 62848-53-7