TMA-DPH is a hydrophobic fluorescent membrane probe (Ex=355 nm; Em=430 nm).
体外研究
In contact with cells, TMA-DPH is instantaneously incorporated into the plasma membrane. TMA-DPH is concentrated in lysosomes and highly acidic late endosomes. The TMA-DPH fluorescence lifetime remains constant, 6.2±0.2 ns, below the same critical concentration of 2 μM, but decreases significantly with higher concentrations. This decrease, however, slows down above 5 μM. The TMA-DPH fluorescence anisotropy displays a similar evolution to the fluorescence lifetime. It is first constant, 0.283±0.003, again until 2 μM, and then decreases rapidly to 0.270±0.003 with 5 μM, continuing to fall, but at a lower rate with higher concentrations.
分子式
C21H24N+.C7H7O3S-
分子量
461.62
CAS号
115534-33-3
运输条件
Room temperature in continental US; may vary elsewhere.
储存方式
-20°C, sealed storage, away from moisture and light