161877-70-9 4-(4'-Dimethylaminophenylazo)benzoyl-tyrosyl-valyl-alanyl-aspartyl-alanyl-prolyl-valyl-5((2-aminoethyl)amino)naphthalene-1-sulfonic acid Dabcyl-ice-edans Dabcyl-tyr-val-ala-asp-ala-pro-val-edans L-Valinamide, N-(4-((4-(dimethylamino)phenyl)azo)benzoyl)-L-tyrosyl-L-valyl-L-alanyl-L-alpha-aspartyl-L-alanyl-L-prolyl-N-(2-((5-sulfo-1-naphthalenyl)amino)ethyl)-