| Bioactivity | Acetalin-1 (Ac-RFMWMK-NH2), a hexapeptide, is a μ opioid receptor antagonist with high affinity for μ and κ3 opioid receptor, weak affinity for κ1 receptors and no affinity for κ2 receptors[1]. |
| Name | Acetalin-1 |
| CAS | 152274-67-4 |
| Sequence | Ac-Arg-Phe-Met-Trp-Met-Lys-NH2 |
| Shortening | Ac-RFMWMK-NH2 |
| Formula | C44H66N12O7S2 |
| Molar Mass | 939.20 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |