Synonyms: [PEN5]UROTENSIN II (4-11), HUMAN;P5U II (4-11), HUMAN;7)-disulfide;[PEN5]-UROTENSIN II (HUMAN, 4-11);L-Valine, L-a-aspartyl-3-mercapto-L-valyl-L-phenylalanyl-L-tryptophyl-L-lysyl-L-tyrosyl-L-cysteinyl-,cyclic (2®ASP-PEN-PHE-TRP-LYS-TYR-CYS-VAL;