| Label | Id | |
|---|---|---|
| octadec-1-ene | 30824 | |
| octanoyl-L-carnitine-d3 | 192247 | |
| omega-carboxyacyl-CoA(5-) | 133241 | |
| organochalcogenate | 52465 | |
| organoselenate | 52466 | |
| organotellurate | 52468 | |
| organothiolate | 52470 | |
| oscr#29-CoA(4-) | 140024 | |
| oxalurate | 57824 | |
| oxamide | 48248 | |
| oxcarbazepine | 7824 | |
| oxeladin | 135424 | |
| oxidophosphorus(1+) | 33124 | |
| oxidosulfate(.1-) | 29824 | |
| oxoacid | 24833 |