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Sitaxsentan sodium (TBC-11251) is a selective endothelin receptor-A antagonist with IC50 and Ki value of 1.4 nM and 0.43 nM, respectively. Sitaxsentan sodium inhibits ET-1-induced stimulation of phosphoinositide turnover with a Ki of 0.69 nM and a pA2 of 8.0. Sitaxsentan blocks the action of endothelin (ET) on the endothelin-A (ETA) receptor selectively (by a factor of 6000 compared to the ETB). Sitaxsentan blocked increased plasma endothelin levels in the prevention protocol but did not affect the established elevated levels in the intervention study.
| Molecular Weight | 476.89 |
| Formula | C18H14ClN2NaO6S2 |
| CAS Number | 210421-74-2 |
| Solubility (25°C) | DMSO 40 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related Endothelin Receptor Products |
|---|
| Zibotentan
Zibotentan (ZD4054) is a more selective and specific endothelin-A receptor (ETAR) antagonist with an IC50 value of 21 nM. |
| Ambrisentan
Ambrisentan is an orally active, highly selective antagonist of the endothelin-1 type A receptor. |
| Macitentan
Macitentan is an orally-active, tissue-targeting dual ET receptor antagonist. |
| Bosentan Hydrate
Bosentan is an endothelin (ET) receptors antagonist for ET-A and ET-B with Ki of 4.7 nM and 95 nM, respectively. |
| Bosentan
Bosentan is an endothelin (ET) receptor antagonist for ET-A and ET-B with Ki of 4.7 nM and 95 nM, respectively. |
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Products are for research use only. Not for human use. We do not sell to patients.
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