| Label | Id | |
|---|---|---|
| biotinyl-5'-AMP(1-) | 62414 | |
| bipindogenin | 38243 | |
| bis(3-fluorobenzylidene)hydrazine | 92414 | |
| bis(3-methylbenzylidene)hydrazine | 109424 | |
| bkos#22 | 139924 | |
| bromfenac | 240107 | |
| bromite | 29248 | |
| bromoacetate | 192408 | |
| bromophenol | 33624 | |
| bufalin | 517248 | |
| bumadizone(1-) | 76124 | |
| butalbital | 102524 | |
| butanamide | 50724 | |
| butoconazole | 3240 | |
| butorphanol | 3242 |