Synonyms: Vasopressin,1-(1-mercaptocyclohexaneaceticacid)-2-(O-ethyl-D-tyrosine)-4-L-valine-8-[N6-[3(or4)-[3,6-bis(dimethylamino)xanthylium-9-yl]-4(or 3)-carboxybenzoyl]-L-lysine]-,inner salt; 7,8-Dithia-11,14,17,20,23-pentaazaspiro[5.19]pentacosane, cyclicpeptide deriv.; Xanthylium, vasopressin deriv.