1-(1-Mercaptocyclohexaneacetic acid)-2-D-tryptophan-4-L-isoleucine-8-L-argininevasopressin 130155-44-1 Mtpia-oxytocin Oxytocin, beta-mercapto-beta,beta-cyclopentamethylenepropionic acid-trp(2)-phe(3)-ile(4)-arg(8)- Oxytocin, beta-mercapto-beta,beta-cyclopentamethylenepropionic acid-tryptophyl(2)-phenylalanyl(3)-isoleucyl(4)-arginine(8)- Vasopressin, 1-(1-mercaptocyclohexaneacetic acid)-2-D-tryptophan-4-L-isoleucine-8-L-arginine- beta-Mercapto-beta,beta-cyclopentamethylenepropionic acid-2-tryptophyl-3-phenylalanyl-4-isoleucyl-8-arginine-oxytocin