94773-24-7 L-Tyrosine, N-(1-(N-(1-(N-L-valyl-L-alpha-glutamyl)-L-prolyl)-L-isoleucyl)-L-prolyl)-, (5alpha,6beta)- Val-glu-pro-ile-pro-tyr Valyl-glutamyl-prolyl-isoleucyl-prolyl-tyrosine Vepipy Vgpipt