6-fluoro-2,3-dihydro-2'H,5'H-spiro[chromene-4,4'-imidazolidine]-2',5'-dione 68367-52-2 InChI=1/C11H9FN2O3/c12-6-1-2-8-7(5-6)11(3-4-17-8)9(15)13-10(16)14-11/h1-2,5H,3-4H2,(H2,13,14,15,16 spiro[4H-1-benzopyran-4,4'-imidazolidine]-2',5'-dione, 6-fluoro-2,3-dihydro-