| Ascorbic acid | Organic compounds | Organoheterocyclic compounds | Dihydrofurans | Furanones | Details |
| Adenosine monophosphate | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleotides | Purine ribonucleotides | Details |
| Melibiose | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Adenosine | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleosides | Not Available | Details |
| Ammonia | Inorganic compounds | Homogeneous non-metal compounds | Homogeneous other non-metal compounds | Not Available | Details |
| Argininosuccinic acid | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Androstenedione | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Androstane steroids | Details |
| Bilirubin | Organic compounds | Organoheterocyclic compounds | Tetrapyrroles and derivatives | Bilirubins | Details |
| Cellobiose | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Beta-Alanine | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Cyclic AMP | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleotides | Cyclic purine nucleotides | Details |
| Acetoacetic acid | Organic compounds | Organic acids and derivatives | Keto acids and derivatives | Short-chain keto acids and derivatives | Details |
| Adenosine 3',5'-diphosphate | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleotides | Purine ribonucleotides | Details |
| L-Carnitine | Organic compounds | Organic nitrogen compounds | Organonitrogen compounds | Quaternary ammonium salts | Details |
| Cortisol | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Hydroxysteroids | Details |
| Creatine | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Cholesterol | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Cholestane steroids | Details |
| Epinephrine | Organic compounds | Benzenoids | Phenols | Benzenediols | Details |
| Pipecolic acid | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Deoxyinosine | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleosides | Purine 2'-deoxyribonucleosides | Details |
| cis-Aconitic acid | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Tricarboxylic acids and derivatives | Details |
| Dopamine | Organic compounds | Benzenoids | Phenols | Benzenediols | Details |
| Dihydrouracil | Organic compounds | Organoheterocyclic compounds | Diazines | Pyrimidines and pyrimidine derivatives | Details |
| Dehydroepiandrosterone | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Androstane steroids | Details |
| Cysteinylglycine | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Dihydrothymine | Organic compounds | Organoheterocyclic compounds | Diazines | Pyrimidines and pyrimidine derivatives | Details |
| Cytidine triphosphate | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Deoxyguanosine | Organic compounds | Nucleosides, nucleotides, and analogues | Purine nucleosides | Purine 2'-deoxyribonucleosides | Details |
| Glycerophosphocholine | Organic compounds | Lipids and lipid-like molecules | Glycerophospholipids | Glycerophosphocholines | Details |
| Dimethylamine | Organic compounds | Organic nitrogen compounds | Organonitrogen compounds | Amines | Details |
