| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| BUTYLENE OXIDE | 2359 | 26249-20-7 | 03/07/2026 | Summary |
| BUTYLGLYCOL ACETATE | 1699 | 112-07-2 | 11/11/2025 | Summary |
| BUTYLHYDROQUINONE, tert- | 3570 | 1948-33-0 | 06/11/2025 | Summary |
| BUTYLLITHIUM | 3122 | 109-72-8 | 11/27/2025 | Summary |
| BUTYLNAPHTHALENESULPHONATE | 2603 | 25638-17-9 | 04/18/2025 | Summary |
| BUTYLPARABEN | 1412 | 94-26-8 | 02/28/2026 | Summary |
| BUTYLPHEN | 3629 | 98-54-4 | 10/31/2025 | Summary |
| BUTYRALDEHYDE | 2033 | 123-72-8 | 12/24/2025 | Summary |
| BUTYRIC ACID | 2295 | 107-92-6 | 01/01/2026 | Summary |
| BUTYROLACTONE, 4- | 2228 | 96-48-0 | 12/31/2025 | Summary |
| BYAKUSHI | 3172 | NONE | 06/26/2025 | Summary |
| BYDUREON | 4292 | 141732-76-5 | 09/02/2025 | Summary |
| BYETTA | 4292 | 141732-76-5 | 09/02/2025 | Summary |
| BYNFEZIA | 3516 | 83150-76-9 | 07/30/2025 | Summary |
| BYPASS SURGERY | 3870 | NONE | 08/29/2025 | Summary |