Synonyms: Oxytocin,1-(3-selenylpropionic acid)- (8CI); 1-Thia-2-selena-6,9,12,15,18-pentaazacycloeicosane,cyclic peptide deriv.; 1-(3-Selenylpropionic acid)oxytocin;Deamino-1-selenooxytocin; Deaminooxytocin 1-seleno analog; Oxytocin, deamino-,1-seleno analog