maleic acid monoureide methyl ester, N-Carbamoyl-maleinamidsaeure-methylester, N-Carbamylmaleamidic acid methyl ester, Maleuricacidmethylester, N-Carbamoylmaleamicacidhylester, Maleinsaeure-methylester-ureid, Maleamic acid,N-carbamoyl-,methyl ester, N-Carbamoyl-maleinsaeure-methylester-amid, methyl maleurate, N-carbamoyl-maleamic acid methyl ester, Methylmaleourea