| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| BUTAPREN | 1948 | 2180-92-9 | 10/11/2025 | Summary |
| BUTAZOLIDINE | 1813 | 50-33-9 | 05/15/2026 | Summary |
| BUTAZONIC | 3467 | 129-20-4 | 05/02/2026 | Summary |
| BUTENAFINE | 4171 | 101828-21-1 | 04/30/2026 | Summary |
| BUTENYL CHLORIDE, 2- | 2613 | 591-97-9 | 04/25/2026 | Summary |
| BUTESIN | 3443 | 94-25-7 | 05/01/2026 | Summary |
| BUTILIDROSSIANISOLO | 3566 | 25013-16-5 | 10/29/2025 | Summary |
| BUTISOL | 1335 | 125-40-6 | 06/16/2025 | Summary |
| BUTOCONAZOLE | 2493 | 67085-13-6 | 04/24/2026 | Summary |
| BUTOCONAZOLE NITRATE | 2493 | 64872-77-1 | 04/24/2026 | Summary |
| BUTOPYRONOXYL | 2507 | 532-34-3 | 11/22/2025 | Summary |
| BUTORPHANOL | 1465 | 42408-82-2 | 04/21/2026 | Summary |
| BUTOXYMETHYLOXIRANE | 1932 | 2426-08-6 | 12/23/2025 | Summary |
| BUTOXYPOLYPROPYLENE GLYCOL | 3694 | 9003-13-8 | 10/16/2025 | Summary |
| BUTRIPTYLINE | 3971 | 15686-37-0 | 10/26/2025 | Summary |