66960-35-8 L-Methioninamide, L-tyrosyl-D-alanylglycyl-L-phenylalanyl-N(sup 2)-methyl-, monoacetate (salt) L-Tyrosyl-D-alanylglycyl-L-phenylalanyl-N(sup 2)-methyl-L-methioninamide monoacetate (salt) LY 127623 LY127623 Lilly 127623 Metkephamid acetate Metkephamid acetate [USAN] Metkephamide acetate