Oxytocin free acid (9-Deamidooxytocin) TFA is an analog of oxytocin in which the glycinamide residue at position 9 in oxytocin has been replaced by a glycine residue. Oxytocin is a pleiotropic, peptide hormone with broad implications for general health, adaptation, development, reproduction, and social behavior[1][2].
[1]. Ferrier BM, et al. 9-Deamidooxytocin, an analog of the hormone containing a glycine residue in place of the glycinamide residue. J Med Chem. 1966;9(1):55-57.
[2]. Carter CS, Kenkel WM, MacLean EL, et al. Is Oxytocin "Nature's Medicine"•. Pharmacol Rev. 2020;72(4):829-861.