119975-64-3 Deltorphin Deltorphin A Dermenkephalin L-alpha-Asparagine, N2-(N-(N-(N-(N-(N-L-tyrosyl-D-methionyl)-L-phenylalanyl)-L-histidyl)-L-leucyl)-L-methionyl)- Tyr-met-phe-his-leu-met-asp-NH2 Tyrosyl-methionyl-phenylalanyl-histidyl-leucyl-methionyl-aspartamide