| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| HYDROCODONE | 1100 | 125-29-1 | 07/16/2026 | Summary |
| HYDROCODONE BITARTRATE | 1100 | 34195-34-1 | 07/16/2026 | Summary |
| HYDROCORTISONE | 1374 | 50-23-7 | 09/16/2026 | Summary |
| HYDROCORTISONE BUTYRATE | 1374 | 13609-67-1 | 09/16/2026 | Summary |
| HYDROCYANIC ACID | 1292 | 74-90-8 | 02/27/2026 | Summary |
| HYDRODIMETHYLARSINE OXIDE | 3422 | 75-60-5 | 09/26/2026 | Summary |
| HYDRODIURIL | 1102 | 58-93-5 | 05/30/2026 | Summary |
| HYDROFLUMETHIAZIDE | 3978 | 135-09-1 | 04/19/2026 | Summary |
| HYDROFLUOBORIC ACID | 2815 | 16872-11-0 | 03/13/2026 | Summary |
| HYDROFLUORIC ACID | 1445 | 7664-39-3 | 04/18/2026 | Summary |
| HYDROGEN | 4922 | 1333-74-0 | 03/20/2026 | Summary |
| HYDROGEN ARSENIDE | 2799 | 7784-42-1 | 03/12/2026 | Summary |
| HYDROGEN CYANIDE | 1292 | 74-90-8 | 02/27/2026 | Summary |
| HYDROGEN FLUORIDE | 1445 | 7664-39-3 | 04/18/2026 | Summary |
| HYDROGEN IODIDE | 3736 | 10034-85-2 | 08/13/2026 | Summary |