1. GPCR/G Protein
  2. Oxytocin Receptor Vasopressin Receptor
  3. Atosiban acetate

Atosiban acetate  (Synonyms: RW22164 acetate; RWJ22164 acetate)

Cat. No.: HY-17572A Purity: 99.88%
COA Handling Instructions

Atosiban acetate (RW22164 acetate;RWJ22164 acetate) is a nonapeptide competitive vasopressin/oxytocin receptor antagonist, and is a desamino-oxytocin analogue. Atosiban is the main tocolytic agent and has the potential for spontaneous preterm labor research.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Atosiban acetate Chemical Structure

Atosiban acetate Chemical Structure

CAS No. : 914453-95-5

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 167 In-stock
Solution
10 mM * 1 mL in DMSO USD 167 In-stock
Solid
5 mg USD 84 In-stock
10 mg USD 144 In-stock
50 mg USD 264 In-stock
100 mg   Get quote  
200 mg   Get quote  

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 3 publication(s) in Google Scholar

Other Forms of Atosiban acetate:

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Description

Atosiban acetate (RW22164 acetate;RWJ22164 acetate) is a nonapeptide competitive vasopressin/oxytocin receptor antagonist, and is a desamino-oxytocin analogue. Atosiban is the main tocolytic agent and has the potential for spontaneous preterm labor research[1].

In Vitro

Atosiban inhibits the oxytocin-mediated release of IP3 from the myometrial cell membrane. There is reduced release of intracellular, stored calcium from the sacroplasmic reticulum of myometrial cells, and reduced influx of Ca2+ from the extracellular space through voltage gated channels. In addition, Atosiban suppresses oxytocin-mediated release of PGE and PGF from the decidua[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

The posterior pituitary hormones, oxytocin and arginine vasopressin, differ in structure by only two amino acids, and Atosiban influences physiological effects of arginine vasopressin on the feto-maternal cardiovascular and renal systems. In late-gestation sheep, the administration of Atosiban for 1 hour fails to induce fetomaternal cardiovascular changes[1].
? Atosiban blocks the activation of oxytocin-receptor-expressing neurons in the parabrachial nucleus of mice[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial
Molecular Weight

1054.24

Appearance

Solid

Formula

C45H71N11O14S2

CAS No.
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (94.86 mM; Need ultrasonic)

H2O : 50 mg/mL (47.43 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.9486 mL 4.7428 mL 9.4855 mL
5 mM 0.1897 mL 0.9486 mL 1.8971 mL
10 mM 0.0949 mL 0.4743 mL 0.9486 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  PBS

    Solubility: 100 mg/mL (94.86 mM); Clear solution; Need ultrasonic

  • 2.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (2.37 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (2.37 mM); Clear solution

  • 4.

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (2.37 mM); Clear solution

*All of the co-solvents are available by MedChemExpress (MCE).
Purity & Documentation

Purity: 99.88%

References
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Atosiban acetate Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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This equation is commonly abbreviated as: C1V1 = C2V2

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Product Name:
Atosiban acetate
Cat. No.:
HY-17572A
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