4-Oxo-2-thioxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylic acid

4-Quinolinecarbothioamide

4-suGalNAcα-C3-PAA-biot

4-suGlcNAcβ-C2-PAA

[4,4′-Dimethyl-2,2′-bipyridine]nickel(II) dichloride hydrate

(4,4′-dmbpy)NiCl₂

4,4-Dimethyl-3-(4-piperidinyl)-1,3-oxazolidin-2-one hydrochloride

4,6-Diaminonicotinonitrile

4,6-Dimethyl-2-(methylsulfinyl)-3-nitropyridine

4`-suLacdiNAc-C3-PAA-biot

4CzIPN

5-{[2-(2-Hydroxyethyl)-1-piperidinyl]methyl}-2-furoic acid

5-{[Cyclohexyl(methyl)amino]methyl}-1-methyl-1H-pyrazole-3-carboxylic acid

5-((Triisopropylsilyl)ethynyl)-dibenzo[b,d]thiophenium triflate

5-(2-Aminoethyl)-1-((1-(2-methoxyethyl)piperidin-4-yl)methyl)pyrrolidin-2-one

5-(2-Fluorophenoxy)-2-pyrazinecarboxylic acid