1-Deaminopenicillamine-2-phe-oxytocin 72915-15-2 OXAPP Oxytocin, 1-(3-mercapto-3-methylbutanoic acid)-2-L-phenylalanine- Oxytocin, 1-desaminopenicillamyl-phe(2)- Oxytocin, 1-desaminopenicillamyl-phenylalanyl(2)-