| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| BURKHOLDERIA PSEUDOMALLEI | 3393 | NONE | 04/08/2026 | Summary |
| BURNT UMBER | 2437 | 12713-03-0 | 08/07/2026 | Summary |
| BUSERELIN | 4352 | 57982-77-1 | 07/10/2026 | Summary |
| BUSERELIN ACETATE | 4352 | 68630-75-1 | 07/10/2026 | Summary |
| BUSPAR | 1448 | 33386-08-2 | 07/21/2025 | Summary |
| BUSPIRONE | 1448 | 36505-84-7 | 07/21/2025 | Summary |
| BUSULFAN | 3369 | 55-98-1 | 02/12/2026 | Summary |
| BUTABARBITAL | 1335 | 143-81-7 | 06/16/2025 | Summary |
| BUTACIDE | 1653 | 51-03-6 | 07/01/2026 | Summary |
| BUTACLAMOL | 3187 | 36504-93-5 | 04/04/2026 | Summary |
| BUTADIENE-STYRENE POLYMER | 2752 | 9003-55-8 | 02/18/2026 | Summary |
| BUTALBITAL | 1033 | 77-26-9 | 08/31/2025 | Summary |
| BUTAMBEN | 3443 | 94-25-7 | 05/01/2026 | Summary |
| BUTANAL | 2033 | 123-72-8 | 09/22/2026 | Summary |
| BUTANE | 1673 | 106-97-8 | 07/02/2026 | Summary |