137915-11-8 Asp-lys-arg-pro-tyr-ile-leu-his-glu L-Glutamic acid, N-(N-(N-(N-(N-(1-(N2-(N2-L-alpha-aspartyl-L-lysyl)-L-arginyl)-L-prolyl)-L-tyrosyl)-L-isoleucyl)-L-leucyl)-L-histidyl)- Magaratensin