62568-57-4 81659-81-6 DSIP nonapeptide Delta sleep-inducing peptide (rabbit) Emideltide Emideltide [INN] L-Glutamic acid, L-tryptophyl-L-alanylglycylglycyl-L-alpha-aspartyl-L-alanyl-L-serylglycyl- L-Glutamic acid, N-(N-(N-(N-(N-(N-(N-(N-L-tryptophyl-L-alanyl)glycyl)glycyl)-L-alpha-aspartyl)-L-alanyl)-L-seryl)-glycyl)- L-Tryptophyl-L-alanylglycylglycyl-L-alpha-aspartyl-L-alanyl-L-serylglycyl-L-glutamic acid