Synonyms: Oxytocin,1-(3-mercaptopropionic acid)-6-(L-2-aminobutyric acid)- (8CI);1-Thia-5,8,11,14,17-pentaazacycloeicosane, cyclic peptide deriv.; (6,1-b-Deaminocystathionine)oxytocin;6-Carbadeaminooxytocin; Deamino-6-carba-oxytocin; Oxytocin,1-(3-mercaptopropanoic acid)-6-(L-2-aminobutanoic acid)-; b-Deaminocystathionine-oxytocin