SML3971

A1899

≥97% (HPLC)

• Synonym(e): A 1899, A-1899, N-[(2,4-Difluorophenyl)methyl]-2′-[[[2-(4-methoxyphenyl)acetyl]amino]methyl][1,1′-biphenyl]-2-carboxamide, S 20951, S-20951, S20951
• Empirische Formel (Hill-System): C₃₀H₂₆F₂N₂O₃
• CAS-Nummer: 498577-46-1
• Molekulargewicht: 500.54
• MDL-Nummer: MFCD06407754
• UNSPSC-Code: 12352200
• NACRES: NA.77

Eigenschaften

• Qualitätsniveau: 100
• Assay: ≥97% (HPLC)
• Form: powder
• Farbe: white to beige
• Löslichkeit: DMSO: 2 mg/mL, clear
• Lagertemp.: -10 to -25°C

Beschreibung

Biochem./physiol. Wirkung

Potent and selective TASK-1 potassium channel blocker that induces lasting respiratory alkalosis and stimulates breathing in anesthetized rats.




A1899 is a highly potent and selective non-voltage-dependent two-pore domain potassium channel K 2P 3.1 blocker (TASK-1, KCNK3, IC50 = 7 nM in CHO cells) with 10-fold selectivity over TASK-3 and much reduced or little potency towards TASK-2/4 (>8 µM in Xenopus oocytes) and other potassium channels. A1899 specifically blocks TASK-1 currents by 74% in Xenopus oocytes at 100 nM via an open-channel block mechanism. A1899 induces lasting respiratory alkalosis and stimulates breathing in anesthetized rats in vivo (5-25 mg/kg, i.v.). Also mitigates the endothelin-1 induced prolonged action potential duration in cardiomyocytes (at 200 nM).

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable