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Cat. No. M4820
Vilanterol Structure

GW642444, VI

Size Price Availability Quantity
10mM*1mL In DMSO USD 260 In stock
2mg USD 165 In stock
5mg USD 245 In stock
10mg USD 375 In stock
50mg USD 885 In stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

Vilanterol displayed a subnanomolar affinity for the β(2)-AR that was comparable with that of salmeterol but higher than olodaterol, formoterol, and indacaterol. In cAMP functional activity studies, vilanterol demonstrated similar selectivity as salmeterol for β(2)- over β(1)-AR and β(3)-AR, but a significantly improved selectivity profile than formoterol and indacaterol. Vilanterol also showed a level of intrinsic efficacy that was comparable to indacaterol but significantly greater than that of salmeterol. In cellular cAMP production and tissue-based studies measuring persistence and reassertion, vilanterol had a persistence of action comparable with indacaterol and longer than formoterol. In addition, vilanterol demonstrated reassertion activity in both cell and tissue systems that was comparable with salmeterol and indacaterol but longer than formoterol.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 486.43
Formula C24H33Cl2NO5
CAS Number 503068-34-6
Purity >98%
Solubility DMSO
Storage at -20°C

In vitro pharmacological characterization of vilanterol, a novel long-acting β2-adrenoceptor agonist with 24-hour duration of action.
Slack RJ, et al. J Pharmacol Exp Ther. 2013 Jan;344(1):218-30. PMID: 23131596.

The efficacy and safety of the novel long-acting β2 agonist vilanterol in patients with COPD: a randomized placebo-controlled trial.
Hanania NA, et al. Chest. 2012 Jul;142(1):119-27. PMID: 22241764.

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Keywords: Vilanterol, GW642444, VI supplier, Adrenergic Receptor, inhibitors

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