| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| HYDROGEN FLUORIDE | 1445 | 7664-39-3 | 07/19/2025 | Summary |
| HYDROGEN IODIDE | 3736 | 10034-85-2 | 02/21/2025 | Summary |
| HYDROGEN PEROXIDE | 1645 | 7722-84-1 | 12/11/2024 | Summary |
| HYDROGEN PHOSPHIDE | 1963 | 7803-51-2 | 02/05/2025 | Summary |
| HYDROGEN SULFIDE | 1599 | 7783-06-4 | 02/04/2025 | Summary |
| HYDROGEN SULFITE | 1969 | 15181-46-1 | 04/04/2025 | Summary |
| HYDROGEN TETRAFLUOROBORATE | 2815 | 16872-11-0 | 05/21/2025 | Summary |
| HYDROGEN WATER | 4922 | NONE | 04/05/2025 | Summary |
| HYDROGEN-RICH SALINE | 4922 | NONE | 04/05/2025 | Summary |
| HYDROGEN-RICH WATER | 4922 | NONE | 04/05/2025 | Summary |
| HYDROGENOPHAGA PSEUDOFLAVA | 4515 | NONE | 12/28/2024 | Summary |
| HYDROGESIC | 2821 | 330988-71-1 | 01/16/2025 | Summary |
| HYDROIODIC ACID | 3736 | 10034-85-2 | 02/21/2025 | Summary |
| HYDROMETHYLNON | 3615 | 67485-29-4 | 01/24/2025 | Summary |
| HYDROMORPHONE | 1326 | 466-99-9 | 12/05/2024 | Summary |