| Label | Id | |
|---|---|---|
| hop-17(21)-ene | 132466 | |
| hop-21(22)-ene | 132464 | |
| hormone | 24621 | |
| hydrazines | 24631 | |
| hydrazinium(1+) | 35324 | |
| hydrocarbon | 24632 | |
| hydrocarbyladenosine | 24909 | |
| hydrogenselenite | 29924 | |
| hydroxybenzaldehyde | 24673 | |
| hydroquinones | 24646 | |
| hydroxides | 24651 | |
| hydroxidodioxidoperoxidosulfate(1-) | 33524 | |
| hydroxy-9-fluorenones | 24657 | |
| hydroxy-L-arginine | 24658 | |
| hydroxy-L-lysine | 24661 |