Synonyms: Vasopressin,1-(3-mercapto-3-methylbutanoic acid)-2-(O-methyl-L-tyrosine)-8-L-arginine-(9CI); 1,2-Dithia-5,8,11,14,17-pentaazacycloeicosane, cyclic peptide deriv.;Dp[Tyr(methyl)2,Arg8]-vasopressin;[1-Deaminopenicillamine-2-(O-methyl)tyrosine]-arginine-vasopressin;[1-Deaminopenicillamine-2-(O-methyltyrosine)-8-arginine]vasopressin;[Deamino-Pen1,O-Me-Tyr2,Arg8]-vasopressin