129276-54-6 L-Asparagine, N2-(N-(N-(N-(5-oxo-L-prolyl)-L-alpha-glutamyl)glycyl)-L-seryl)- N2-(N-(N-(N-(5-Oxo-L-prolyl)-L-alpha-glutamyl)glycyl)-L-seryl)-L-asparagine Pyroglu-glu-gly-ser-asn Pyroglutamyl-glutamyl-glycyl-seryl-asparagine