N-(4-(4-acetamidophenyl)phenyl)-2, 2, 3, 3, 4, 4, 4-heptafluorobutanamide

N-(4-(4-Azido-3-iodophenylazo)benzoyl)-3-aminopropyl-N'-oxysulfosuccinimide ester

N-(4-(4-Azidobenzamido)butyl)-3-(2'-pyridyldithio)propionamide

N-(4-(4-Azidophenylazo)benzoyl)-11-aminoundecyl-N'-oxysuccinimide ester

N-(4-(4-Azidophenylazo)benzoyl)-3-aminopropyl-N'-oxysuccinimide ester

N-(4-(4-Azidophenylazo)benzoyl)-6-aminohexyl-N'-oxysuccinimide ester

N-(4-(4-Chlorophenoxy)phenyl)acetamide

N-(4-(4-Chlorophenoxy)phenyl)formamide

N-(4-(4-Chlorophenyl)-1, 3-oxazol-2-yl)-1-phenylmethanimine

N-(4-(4-Chlorophenyl)-1, 3-thiazol-2-yl)-2-(4-morpholinyl)acetamide

N-(4-(4-Cyano-2-furfurylidene-2, 5-dihydro-5-oxo-3-furyl)phenyl)butane-1-sulfonamide

N-(4-(4-Maleimidophenyl)butyryl)phosphatidylethanolamine

N-(4-(4-Methylphenyl)-1, 3-oxazol-2-yl)-1-phenylmethanimine

N-(4-(4-Morpholinylsulphonyl)phenyl)acetamide

N-(4-(5-bromo-2-pyrimidinyloxy)-3-chlorophenyl)-N'-(2-nitrobenzoyl)urea

N-(4-(5-Imino-7-oxo-4, 5, 6, 7-tetrahydro-2H-(1, 2, 3)triazolo(4, 5-d)pyrimidin-2-yl)benzoyl)glutamic acid

N-(4-(5-Oxo-3, 4-diazabicyclo(4.1.0)hept-2-en-2-yl)phenyl)butanamide

N-(4-(7-(Diethylamino)-4-methylcoumarin-3-yl))maleimide

N-(4-(7-Diethylamino 4-methylcoumarin-3-yl)phenyl)iodoacetamide

N-(4-(7-Diethylamino-4-methylcoumarin-3-yl)phenyl)maleimide