| Label | Id | |
|---|---|---|
| He2(-) | 33686 | |
| He2(2+) | 33684 | |
| HeH(+) | 33688 | |
| HeH(2+) | 33690 | |
| Helogaphen | 3611 | |
| Heme-thiolate(P-450) | 36073 | |
| Hept-2-ensaeure | 36152 | |
| Hept-2c-ensaeure | 38365 | |
| Hept-2t-ensaeure | 38364 | |
| Heptadecin-(5)-carbonsaeure | 38362 | |
| Herbax | 34936 | |
| Hexachlorcyclohexan | 24536 | |
| Hexachlorzyklohexan | 24536 | |
| Hg(CN)2 | 36573 | |
| Hg3(2+) | 50236 |