32911-10-7 5-18-11-00419 (Beilstein Handbook Reference) BRN 1688693 N-(4-Oxo-4H-1-benzopyran-2-yl)-N'-(phenylmethyl)urea Urea, N-(4-oxo-4H-1-benzopyran-2-yl)-N'-(phenylmethyl)-