| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Hydrocarbons | 100 | + | |
| 2 | Sulfur Compounds | 27 | + | |
| 3 | Carboxylic Acids | 21 | + | |
| 4 | Amides | 16 | + | |
| 5 | Amines | 10 | + | |
| 6 | Organometallic Compounds | 8 | + | |
| 7 | Urea | 8 | + | |
| 8 | Alcohols | 8 | + | |
| 9 | Organophosphorus Compounds | 7 | + | |
| 10 | Quinones | 4 | + | |
| 11 | Nitroso Compounds | 4 | + | |
| 12 | Lactones | 4 | + | |
| 13 | Aza Compounds | 3 | + | |
| 14 | Amidines | 2 | + | |
| 15 | Ethers | 1 | + | |
| 16 | Nitriles | 1 | + | |
| 17 | Azo Compounds | 1 | + | |
| 18 | Imides | 1 | + | |
| 19 | Nitro Compounds | 1 | + | |
| 20 | Isocyanates | 1 | + | |
| 21 | Boron Compounds | 1 | + |