| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| HYDROCODONE | 1100 | 125-29-1 | 01/31/2025 | Summary |
| HYDROCODONE BITARTRATE | 1100 | 34195-34-1 | 01/31/2025 | Summary |
| HYDROCORTISONE | 1374 | 50-23-7 | 02/13/2025 | Summary |
| HYDROCORTISONE BUTYRATE | 1374 | 13609-67-1 | 02/13/2025 | Summary |
| HYDROCYANIC ACID | 1292 | 74-90-8 | 08/06/2024 | Summary |
| HYDRODIMETHYLARSINE OXIDE | 3422 | 75-60-5 | 02/20/2025 | Summary |
| HYDRODIURIL | 1102 | 58-93-5 | 12/03/2024 | Summary |
| HYDROFLUMETHIAZIDE | 3978 | 135-09-1 | 07/29/2024 | Summary |
| HYDROFLUOBORIC ACID | 2815 | 16872-11-0 | 08/31/2024 | Summary |
| HYDROFLUORIC ACID | 1445 | 7664-39-3 | 10/04/2024 | Summary |
| HYDROGEN | 4922 | 1333-74-0 | 04/05/2025 | Summary |
| HYDROGEN ARSENIDE | 2799 | 7784-42-1 | 08/17/2024 | Summary |
| HYDROGEN CYANIDE | 1292 | 74-90-8 | 08/06/2024 | Summary |
| HYDROGEN FLUORIDE | 1445 | 7664-39-3 | 10/04/2024 | Summary |
| HYDROGEN IODIDE | 3736 | 10034-85-2 | 02/21/2025 | Summary |