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1,3-Propanediamine1
1,7-Dimethylxanthine1
1-Methyl-3-Propylimidazolium2
1-Methylnicotinamide2
1-Naphthylacetic acid1
16a-Hydroxyestradiol1
17a-Ethynylestradiol2
2,2-Dimethylcysteine2
2,3-Dihydroxybenzoic Acid5
2,4,5-Trichlorophenoxyacetic acid4
2,4-DB2
2,4-Dichlorophenoxyacetic acid2
2,4-Dihydroxybenzoic Acid5
2,5-Dihydroxybenzoic Acid5
2,6-Lutidine2
2-Amino-5-Methylthiadiazole1
2-Aminobenzoic Acid2
2-Aminobiphenyl4
2-Aminoethanol1
2-Aminosulphone Albendazole Metabolite1
2-hydroxyethyl phosphonic acid1
2-hydroxypropyl phosphonic acid1
2-Methylcysteine2
2-Morpholinoethanesulfonic Acid (MES)2
2-Naphthalenesulfonic Acid3
2-Naphthoxyacetic acid2
20,25-Diazacholesterol1
2′-Deoxycytidine 5′-Monophosphate2
3,4-Difluoroaniline1
3,4-Dihydroxybenzoic Acid5
3,5-Dihydroxybenzoic Acid6
3-Aminobenzoic Acid4
3-Aminobiphenyl2
3-Aminopyridine5
3-Nitrophthalic Acid2
4-Acetylbenzoic Acid2
4-Amino-2-Chloropyridine3
4-Amino-3-Chloropyridine2
4-Aminobenzoic Acid5
4-Aminobiphenyl4
4-Aminophenol5
4-Aminopyridine5
4-Aminosalicylic Acid2
4-Carboxybenzaldehyde1
4-Chlorophenylboronic acid1
4-CPA2
4-Ethylaniline1
4-Methyldeoxybenzoin1
4-Morpholinepropanesulfonic Acid (MOPS)2
4-Nitrophthalic Acid2
5-Amino-4-Oxopentanoic Acid1
5-Aminoindole3
5-Fluorouracil (5-FU, F5U)3
5-Formyl-1H-pyrrole-3-carboxylic Acid1
5-Hydroxy Thiabendazole1
5-Hydroxyindole-3-Acetic Acid1
5-Hydroxytryptophan3
5-Methylfurfural1
5-Methyltetrahydrofolic Acid (5-MTHF)1
5-Nitro-2-Furaldehyde Semicarbazone (Nitrofurazone)2