3,6-diacetoxy Phthalonitrile is a fluorescent probe for monitoring intracellular pH by flow cytometry in living cells. It rapidly crosses cell membranes and is cleaved by cytosolic esterases to form the fluorescent pH indicator 2,3-dicyano-hydroquinone (DCH), which is excited at UV wavelengths. DCH can be excited at 351 nm, with pH-dependent emission in the range of 450-476 nm (pH 5.0-10.0) using a potassium-based buffer.
DHPDS disodium salt, a pH-sensitive fluorescent dye, is utilized to measure intracellular pH (pHi) from the surface fluorescence of the isolated perfused rat liver [1].
Chlorophenol red (Dichlorophenolsulphonephthalein) 是一种具有广泛应用的染料。在生物实验中,该染料扮演着至关重要的角色,可帮助科研人员观察细胞结构,追踪生物分子,评估细胞功能,以及区分不同细胞类型。同时,它也被用于检测生物分子,研究组织病理,并监测微生物活动,适用于从基础科学研究至临床诊断等多个领域。此外,Chlorophenol red 在染色传统领域如纺织品染色,以及新兴领域如功能性纺织品处理、食品色素应用和染料敏化太阳能电池的制造中亦有着重要用途。
Aminacrine hydrochloride monohydrate, a highly fluorescent anti-infective dye, is used as a topical antiseptic and mutagen due to its interaction with DNA. It is also used as an intracellular pH indicator.
The cell-permeant pH indicator, carboxy SNARF-1, acetoxymethyl ester, acetate (CAS #126208-13-7) has a pKa of ~7.5 after de-esterification, thus is useful for measuring pH changes between pH 7 and pH 8. Carboxy-SNARF-1 exhibits a significant pH-dependent