imidurea, N,N'-Methylenebis[N'-[3-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]-urea, Imidazolidinyl Urea, 1,1'-Methylenebis(3-(3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl)urea); N,N''-Methylenebis[N'-[3-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl]-urea; N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea; N,N'-Methylenebis[N'-(3-hydroxymethyl-2,5-dioxo-4-imidazolidinyl)urea]; 1-[3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]-3-[[[3-(hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]carbamoylamino]methyl]urea;