SKU : MC508171
CAS Number : 115344-47-3
Molecular Formula : C14H16N6O | Molecular Weight : 284.32
Synonyms : SKF 94836
Quote RequestPurity | NLT 98% |
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Storage | at 20ºC 2 years |
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Chemical Name | Siguazodan |
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CAS Number | 115344-47-3 |
MDL Number | MFCD00867103 |
Molecular Formula | C14H16N6O |
Molecular Weight | 284.32 |
Synonyms | SKF 94836 |
Siguazodan (SKF 94836) is a potent, selective and orally active phosphodiesterase III (PDE-III) inhibitor with an IC50 of 117 nM. Siguazodan increases cAMP accumulation in intact platelets with an EC50 of 18.88 μM. Siguazodan also inhibits phenylephrine-induced 5-HT release with an IC50 value of 4.2 μM[1][2][3]. IC50 & Target: IC50: 117 nM (phosphodiesterase III)[1] In Vitro: Siguazodan selectively inhibits the major cyclic AMP-hydrolysing PDE in human platelet supernatants. The inhibited enzyme has been variously termed cyclic GMP-inhibited PDE or PDE-III. In platelet-rich plasma (PRP), Siguazodan inhibits U46619-induced aggregation more potently than that induced by adenosine 5'-diphosphate (ADP), and collagen. Treatment of the PRP with Aspirin has no effect on the potency of Siguazodan. In washed platelets, Siguazodan increases cyclic AMP levels and reduces cytoplasmic free calcium. ADP decreases the ability of Siguazodan to raise cyclic AMP and this may explain its lower potency in inhibiting responses to ADP. Siguazodan has anti-platelet actions over the same concentration range that it is an inotrope and vasodilator[2]. In Vivo: Siguazodan is a potent, selective inhibitor of phosphodiesterase III that has positive inotropic and vasodilating actions in various laboratory animals and is orally active with a long duration of action in conscious dogs[2].
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