159427-08-4 159628-71-4 159704-78-6 L-Threoninamide, N-acetyl-L-histidyl-L-seryl-L-alpha-aspartyl-L-alanyl-L-valyl-L-phenylalanyl-L-threonyl-L-alpha-glutamyl-L-asparaginyl-L-tyrosyl-L-threonyl-L-lysyl-L-leucyl-L-arginyl-L-lysyl-L-glutaminyl-L-norleucyl-L-alanyl-L-alanyl-L-lysyl-L-lysyl-L-tyrosyl-L-leucyl-L-asparaginyl-L-alpha-aspartyl-L-leucyl-L-lysyl-L-lysylglycylglycyl-, (25-21)-lactam Ro 25-1553 Vasoactive intestinal octacosapeptide (pig), N-acetyl-8-L-glutamic acid-12-L-lysine-17-L-norleucine-19-L-alanine-25-L-aspartic acid-26-L-leucine-27-L-lysine-28-L-lysine-28a-glycine-28b-glycine-28c-L-threoninamide-, cyclic (25-21)-peptide