4,4-二苯氨基脲

hydrazine-N,N'-dicarboxylic acid bis-diphenylamide

1-cyano-N,N-diphenylformamide

1-methyl-1,3-diphenylurea

3-[(3-fluorophenyl)-(4-hydroxy-2-oxochromen-3-yl)methyl]-4-hydroxychromen-2-one