5-de-L-Tyrosine-6-de-L-proline-7-de-L-serinamidedermorphin 78700-74-0 Dermorphin (1-4) Dermorphin, 5-de-L-tyrosine-6-de-L-proline-7-de-L-serinamide- Tyr-ala-phe-gly Tyr-ala-phe-gly-OH Tyrosyl-alanyl-phenylalanyl-glycine