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101193-62-8 | Quinotolast sodium anhydrous

Quinotolast sodium anhydrous NLT 98%

SKU : MC501641

CAS Number : 101193-62-8

Molecular Formula : C17H11N6NaO3 | Molecular Weight : 370.30

Synonyms : FR71021

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Purity NLT 98%
Storage at 20ºC 2 years

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Chemical Name Quinotolast sodium anhydrous
CAS Number 101193-62-8
Molecular Formula C17H11N6NaO3
Molecular Weight 370.30
Synonyms FR71021
Introduction of 101193-62-8 :

Quinotolast sodium in the concentration range of 1-100 μg/mL inhibits histamine, LTC4 and PGD2 release in a concentration-dependent manner. IC50 & Target: histamine[1]
leukotriene[1] In Vitro: Quinotolast inhibits the release of histamine and the generation of leukotriene (LT) C4 and prostaglandin (PG) D2 from dispersed human lung cells. Quinotolast (100 μg/mL) significantly inhibits PGD2 and LTC4 release. Quinotolast inhibits PGD2 release by 100% and LTC4 release by 54%. The inhibitory effect of Quinotolast on histamine release from dispersed lung cells is largely independent of the preincubation period, no tachyphylaxis being observed. Quinotolast shows a significant inhibition of inflammatory mediators from human dispersed lung cells[1]. Quinotolast also shows strong inhibitory effects on histamine and peptide leukotrienes release from guinea pig lung fragments or mouse cultured mast cells. Quinotolast concentration-dependently inhibits pLTs release from cultured mast cells. The IC50 value for Quinotolast is 0.72 μg/mL[2]. In Vivo: Quinotolast potently inhibits such type I allergic reactions as passive cutaneous anaphylaxis (PCA) and anaphylactic bronchoconstriction in rats by both intravenous and oral dosing. When Quinotolast is given i.v. to rats, Quinotolast, dose-dependently inhibits PCA. The doses of Quinotolast required to inhibit the reaction by 50% (ED50) is 0.0063 mg/kg. Given p.o., Quinotolast inhibits the reaction. ED50 value for Quinotolast is 0.0081 mg/kg. Although almost complete inhibition is observed with Quinotolast at a dose of 0.32 mg/kg, its effect is slightly attenuated at a dose of 1 mg/kg[2].

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