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common name	Atosiban	English name	(Deamino-Cys1,D-Tyr(Et)2,Thr4,Orn8)-Oxytocin acetate salt
CAS number	90779-69-4

Density	1.3±0.1g/cm3
Boiling point	1469.0±65.0 °C at 760 mmHg
Molecular formula	C 43 H 67 N 11 O 12 S 2
Molecular weight	994.189
Flash point	842.2±34.3°C
Accurate mass	993.441223
PSA	416.27000
LogP	-3.41
Appearance traits	solid
Vapor pressure	0.0±0.3 mmHg at 25°C
Refractive index	1.549
Storage conditions	−20°C
Water solubility	H2O: ≤100 mg/mL

Usage: Atosiban (RW22164; Tractocile), a nonapeptide, is a desamino-oxytocin analogue and a competitive vasopressin/oxytocin receptor antagonist that inhibits oxytocin-mediated release of inositol triphosphate from the myometrial cell membrane.