| Similarity | Rank | |
|---|---|---|
| ammonia | 0.870 | 10958 |
| chlorinate | 0.839 | 31192 |
| phosgene | 0.831 | 98640 |
| &sub2; | 0.825 | 34174 |
| phenol | 0.818 | 28644 |
| ethane | 0.815 | 70857 |
| methane | 0.812 | 11786 |
| tetrachloride | 0.811 | 38419 |
| nitric | 0.807 | 22052 |
| nitrite | 0.806 | 23744 |
| methanol | 0.806 | 19662 |
| sulphuric | 0.796 | 21898 |
| hypochlorite | 0.796 | 36579 |
| sulphate | 0.795 | 9870 |
| hydrochloric | 0.793 | 22757 |
| nitrous | 0.792 | 29606 |
| benzene | 0.791 | 21692 |
| monoxide | 0.789 | 12904 |
| ammonium | 0.789 | 22976 |
| nitrogen | 0.788 | 6386 |
| formaldehyde | 0.787 | 23163 |
| hydrocarbon | 0.786 | 12320 |
| hydrogen | 0.785 | 5285 |
| sodium | 0.784 | 6267 |
| toluene | 0.781 | 57791 |