3,3′-Dipropylthiadicarbocyanine (iodide)

DiSC3(5) is a fluorescent probe commonly used as a tracer dye to evaluate mitochondrial membrane potential. The excitation/emission wavelength of DiSC3(5) is up to 622/670 nm. DiSC3(5) can inhibit the respiratory system associated with mitochondrial NAD, and the IC₅₀ value is 8 μM. DiSC3(5) in the presence of Na⁺/K⁺-ATPase inhibitor ouabain 2 can induce membrane hyperpolarization of Ehrlich ascites tumor cells^[1][2][3].

References:
[1]. Yamamoto T, et al. Multiple effects of DiS-C3(5) on mitochondrial structure and function. Eur J Biochem. 2004;271(17):3573-3579.
[2]. Sims PJ, et al. Studies on the mechanism by which cyanine dyes measure membrane potential in red blood cells and phosphatidylcholine vesicles. Biochemistry. 1974 Jul 30;13(16):3315-30.
[3]. Smith TC, et al. The effect of the fluorescent probe, 3,3'-dipropylthiodicarbocyanine iodide, on the membrane potential of Ehrlich ascites tumor cells. Biochem Biophys Res Commun. 1980 Jul 31;95(2):722-7.

DiSC3(5) 是一种荧光探针，常用作示踪染料来评估线粒体膜电位。DiSC3(5) 的激发/发射波长最大为 622/670 nm. DiSC3(5) 对线粒体 NAD 相关呼吸系统有抑制作用，IC₅₀ 值为 8 μM。DiSC3(5) 在Na⁺/K⁺-ATP 酶抑制剂 ouabain 2 的存在下可以诱导埃利希腹水肿瘤细胞的膜超极化。