1-(3-Mercaptopropionic acid)-2-(3-(p-ethoxyphenyl)-D-alanine)-4-L-threonine-8-L-ornithineoxytocin 1-Deamino-2D-tyr-(OEt)-4-thr-8-orn-oxytocin 90779-69-4 Atosiban Atosiban [USAN:INN] Atosibanum [INN-Latin] ORF 22164 Oxytocin, 1-(3-mercaptopropanoic acid)-2-(O-ethyl-D-tyrosine)-4-L-threonine-8-L-ornithine- Rwj 22164