146369-65-5 L-Phenylalanine, L-tyrosyl-L-1,2,3,4-tetrahydro-3-isoquinolinecarbonyl-L-phenylalanyl- L-Tyrosyl-L-1,2,3,4-tetrahydro-3-isoquinolinecarbonyl-L-phenylalanyl-L-phenylalanine TIPP Tyr-tic-phe-phe-OH tyrosyl-1,2,3,4-tetrahydro-3-isoquinolinecarbonyl-phenylalanyl-phenylalanine