| 4-Amino-5-hydroxymethyl-2-methylpyrimidine | Organic compounds | Organoheterocyclic compounds | Diazines | Pyrimidines and pyrimidine derivatives | Details |
| 4-Carboxy-4-hydroxy-2-oxoadipate | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Tricarboxylic acids and derivatives | Details |
| 4-Glutathionyl cyclophosphamide | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| 4-Hydroxy-2-oxohexanoic acid | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| 4-Hydroxy-2-oxopentanoate | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| 4-Hydroxy-5-phenyltetrahydro-1,3-oxazin-2-one | Organic compounds | Benzenoids | Benzene and substituted derivatives | Not Available | Details |
| 4-Hydroxy-L-threonine | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| 4-Hydroxyphenylacetaldehyde | Organic compounds | Benzenoids | Benzene and substituted derivatives | Phenylacetaldehydes | Details |
| 4-Methyl-5-(2-phosphoethyl)-thiazole | Organic compounds | Organoheterocyclic compounds | Azoles | Thiazoles | Details |
| 4-Phospho-D-erythronate | Organic compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Monosaccharides | Details |
| 4,5-Dihydro-4-hydroxy-5-S-glutathionyl-benzo[a]pyrene | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| 5-(2-Hydroxyethyl)-4-methylthiazole | Organic compounds | Organoheterocyclic compounds | Azoles | Thiazoles | Details |
| 5-Amino-4-imidazolecarboxyamide | Organic compounds | Organoheterocyclic compounds | Azoles | Imidazoles | Details |
| 5-Amino-6-(5'-phosphoribosylamino)uracil | Organic compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Glycosyl compounds | Details |
| 5-Carboxy-2-pentenoyl-CoA | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acyl thioesters | Details |
| 5-Dehydro-4-deoxy-D-glucarate | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| 5-Dehydro-4-deoxy-D-glucuronate | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| 5-Methyl-3-oxo-4-hexenoyl-CoA | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acyl thioesters | Details |
| 5-Methylhex-4-enoyl-CoA | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acyl thioesters | Details |
| 5-O-(1-Carboxyvinyl)-3-phosphoshikimate | Organic compounds | Organophosphorus compounds | Organic phosphoric acids and derivatives | Phosphate esters | Details |
| 5-Phenyl-1,3-oxazinane-2,4-dione | Organic compounds | Benzenoids | Benzene and substituted derivatives | Not Available | Details |
| 7-Methyl-3-oxo-6-octenoyl-CoA | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acyl thioesters | Details |
| 7,8-Diaminononanoate | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| 7,8-Dihydro-7-hydroxy-8-S-glutathionyl-benzo[a]pyrene | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| 8-Amino-7-oxononanoate | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acids and conjugates | Details |
| ADP-D-Glycero-D-manno-heptose | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleotides | Purine nucleotide sugars | Details |
| ADP-L-Glycero-D-manno-heptose | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleotides | Purine nucleotide sugars | Details |
| Aminoacetaldehyde | Organic compounds | Organonitrogen compounds | Amines | Primary amines | Details |
| Arbutin 6-phosphate | Organic compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Glycosyl compounds | Details |
| Benzo[a]pyrene-4,5-oxide | Organic compounds | Benzenoids | Phenanthrenes and derivatives | Chrysenes | Details |
