| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| BUTENYL CHLORIDE, 2- | 2613 | 591-97-9 | 07/25/2025 | Summary |
| BUTESIN | 3443 | 94-25-7 | 07/10/2025 | Summary |
| BUTILIDROSSIANISOLO | 3566 | 25013-16-5 | 10/29/2025 | Summary |
| BUTISOL | 1335 | 125-40-6 | 06/16/2025 | Summary |
| BUTOCONAZOLE | 2493 | 67085-13-6 | 07/25/2025 | Summary |
| BUTOCONAZOLE NITRATE | 2493 | 64872-77-1 | 07/25/2025 | Summary |
| BUTOPYRONOXYL | 2507 | 532-34-3 | 11/22/2025 | Summary |
| BUTORPHANOL | 1465 | 42408-82-2 | 07/22/2025 | Summary |
| BUTOXYMETHYLOXIRANE | 1932 | 2426-08-6 | 03/07/2025 | Summary |
| BUTOXYPOLYPROPYLENE GLYCOL | 3694 | 9003-13-8 | 10/16/2025 | Summary |
| BUTRIPTYLINE | 3971 | 15686-37-0 | 10/26/2025 | Summary |
| BUTTER YELLOW | 3192 | 60-11-7 | 06/27/2025 | Summary |
| BUTTERBUR | 4427 | NONE | 09/28/2025 | Summary |
| BUTYL 3-METHYL-4-QUINOLINECARBOXYLATE | 3601 | 19764-43-3 | 10/30/2025 | Summary |
| BUTYL 3-METHYLBUTANOATE | 3212 | 109-19-3 | 06/27/2025 | Summary |