1-3. Metal cation
1-4. Inorganic Anion
1-5. Quantum
1-6. Small organic
2. Amino acids & Peptides
2-2. Other aa
2-3. D-aa
2-4. Polyamine
3. Nucleic acids
3-2. Purines
3-3. Ribonucleosides
3-4. Deoxyribonucleosides
3-5. Ribonucleotides
3-6. Deoxyribonucleotides
3-7. 3'-nulecotides
3-8. Cyclic nucleotides
3-9. Other nucleos(t)ides
4. Lipids
4-2. Simple Lipids
5. Carbohydrates
5-2. Disaccharides
5-3. Monosaccharide derivatives
6. Organic acids
6-2. Dicarboxylic acids
6-3. Tricarboxylic acids
6-4. 2-Oxocarboxylic acids
7. Vitamins and Cofactors
7-2. Vitamine B
7-3. Vitamine K
7-4. Heme
1. Inorganic and small organic molecules
2. Amino acids & Peptides
3. Nucleic acids
4. Lipids
5. Carbohydrates
6. Organic acids
7. Vitamins and Cofactors