(R)-(+)-Bay-K-8644 是钙离子通道抑制剂。(

(R)-(+)-Bay-K-8644 is a calcium channel inhibitor. (R)-(+)-Bay-K-8644 inhibits Ba²⁺ currents (I_Ba) (IC₅₀=975 nM).

IC50: 975 nM (I_Ba)^[1]

(R)-(+)-Bay-K-8644, a conventional racemic mixture of Bay K 8644, is widely used as an L-type Ca²⁺ channel agonist. Each optical isomer possesses opposite effects on I_Ba, (R)-(+)-Bay-K-8644 as an antagonist and S(-)-Bay K 8644 as an agonist. (R)-(+)-Bay-K-8644 inhibits Ba²⁺ currents (I_Ba) (IC₅₀=975 nM). When (R)-(+)-Bay-K-8644 (0.5 μM) is applied, I_Ba is suppressed to 71±10% of control. In the presence of (R)-(+)-Bay-K-8644I_Ba^[1]. (R)-(+)-Bay-K-8644 is a calcium channel inhibitor^[2].

356.30

Solid

C₁₆H₁₅F₃N₂O₄

98791-67-4

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 300 mg/mL (841.99 mM)

* "≥" means soluble, but saturation unknown.

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 10% DMSO 40% PEG300 5% Tween-80 45% saline

  Solubility: ≥ 2.5 mg/mL (7.02 mM); Clear solution

• 2.

  请依序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)

  Solubility: 2.5 mg/mL (7.02 mM); Suspended solution; Need ultrasonic

• [1]. Zhu HL, et al. Antagonistic actions of S(-)-Bay K 8644 on cyclic nucleotide-induced inhibition of voltage-dependent Ba(2+) currents in guinea pig gastric antrum. Naunyn Schmiedebergs Arch Pharmacol. 2008 Dec;378(6):609-15. [Content Brief]

  [2]. Sidaway P, et al. L-type Ca2+ channel sparklets revealed by TIRF microscopy in mouse urinary bladder smooth muscle. PLoS One. 2014 Apr 3;9(4):e93803. [Content Brief]