| Agent Name | Agent Number | CAS Number | Last Updated | |
|---|---|---|---|---|
| HOG | 1317 | 77-10-1 | 09/17/2025 | Summary |
| HOLOXAN | 1777 | 3778-73-2 | 03/20/2026 | Summary |
| HOLY BASIL | 4629 | NONE | 04/18/2026 | Summary |
| HOMAPIN | 1103 | 80-49-9 | 04/14/2026 | Summary |
| HOMATROPINE | 1103 | 87-00-3 | 04/14/2026 | Summary |
| HOMATROPINE METHYLBROMIDE | 1103 | 80-49-9 | 04/14/2026 | Summary |
| HOMOSALATE | 2506 | 118-56-9 | 11/22/2025 | Summary |
| HONOKIOL | 3950 | 35354-74-6 | 11/24/2025 | Summary |
| HOODIA GORDONII | 4537 | NONE | 03/25/2026 | Summary |
| HOODIA PARVIFLORA | 4537 | NONE | 03/25/2026 | Summary |
| HOOKWORM | 2675 | NONE | 05/17/2025 | Summary |
| HOPS | 3048 | NONE | 04/11/2026 | Summary |
| HORACORT | 3104 | 51333-22-3 | 05/27/2026 | Summary |
| HORDEUM VULGARE | 3592 | NONE | 05/07/2026 | Summary |
| HORMODIN | 2290 | 133-32-4 | 11/21/2025 | Summary |