Biological Activity
Technical Data
Solubility
Calculators
Datasheets
References
Biological Activity
Potent oxytocin receptor (OTR) antagonist. Inhibits oxytocin-induced increase in Ca2+ concentration in myometrial cells in vitro (IC50 = 5 nM) Activates NF-κB and MAPK pathways in human amnion via Gαi signaling, resulting in pro-inflammatory effects. Inhibits oxytocin-induced uterine contractions in vivo and in vitro. Effective in a rat preterm labor model.
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
Solubility Data
Solubility
Soluble to 100 mg/ml in water
Preparing Stock Solutions
The following data is based on the product molecular weight 994.19. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
Concentration / Solvent Volume / Mass
1 mg
5 mg
10 mg
1 mM
1.01 mL
5.03 mL
10.06 mL
5 mM
0.2 mL
1.01 mL
2.01 mL
10 mM
0.1 mL
0.5 mL
1.01 mL
50 mM
0.02 mL
0.1 mL
0.2 mL
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Product Datasheets
Certificate of Analysis / Product Datasheet
Safety Datasheet
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References
References are publications that support the products' biological activity.
Kimet al (2016) The oxytocin receptor antagonist, Atosiban, activates pro-inflammatory pathways in human amnion via Gαi signalling. Mol.Cell.Endocrinol. 420 11 PMID: 26586210
Kimet al (2017) Differential effects of oxytocin receptor antagonists, Atosiban and Nolasiban, on oxytocin receptor-mediated signaling in human amnion and myometrium. Mol.Pharmacol. 91 403 PMID: 28188254
Hahnet al (1987) Evaluation of 1-deamino-[D-Tyr(Oethyl)2, Thr4, Orn8] vasotocin, an oxytocin antagonist, in animal models of uterine contractility and preterm labor: a new tocolytic agent. Am.J.Obstet.Gynecol. 157 977 PMID: 3674173
Maggiet al (1994) Antagonists for the human oxytocin receptor: an in vitro study. J.Reprod.Fertil. 101 345 PMID: 7932368