134823-10-2 3-((N-((N'-Methylamino)carbonyl)-N-hydroxyamino)methyl)-6-(4'-fluorophenoxy)chromene CGS 24891 CGS-24891 Macha-fphoc Urea, N-((6-(4-fluorophenoxy)-2H-1-benzopyran-3-yl)methyl)-N-hydroxy-N'-methyl-