134406-64-7 Casomorphin, trp(3)- Casomorphin, tryptophyl(3)- Glycine, N-(1-(N-(1-L-tyrosyl-L-prolyl)-L-tryptophyl)-L-prolyl)- Trp(3)-casomorphin Tyr-pro-trp-pro-gly-OH Tyrosyl-prolyl-tryptophyl-prolyl-glycine-OH