1-PHENYL-5-(2,4-XYLYL)BIURET

1-PYRROLIDINEACETALDEHYDE DIETHYL ACETAL

1-TERT-BUTYL-3-(2-CHLOROBENZYL)UREA

1-TERT-BUTYL-3-(3-TRIFLUOROMETHYL)PHENYL)UREA

1,1'-(4-METHYL-1,3-PHENYLENE)BIS(3-ISOPROPYLUREA)

1,1'-(ETHYLENEDISULFONYLDIETHYLENE)BIS(1-METHYLPIPERIDINIUM IODIDE)

1,1'-BINAPHTHYL-8,8'-DICARBOXYLIC ACID

1,1'-HEXAMETHYLENEBIS(3-(P-TOLUENESULFONAMIDO)UREA)

1,1'-PENTAMETHYLENEBIS(3,4-DIMETHYLPYRIDINIUM BROMIDE)

1,1-DIBUTYL-3-(3,5-DICHLOROPHENYL)UREA

1,1-DICYCLOHEXYL-3-(2-METHOXY-5-NITROPHENYL)UREA

1,1-DICYCLOHEXYL-3-METHYLUREA

1,1-DIISOPROPYL-3-(2,4,5-TRICHLOROPHENYL)UREA

1,1-DIISOPROPYL-3-(P-TOLYL)UREA

1,1-DIMETHYL-3-(2,2,2-TRICHLORO-1-(2-METHOXY-PHENYLAMINO)-ETHYL)-UREA