Product Description: 5(6)-Carboxynaphthofluorescein is a pH-dependent fluorophore. 5(6)-Carboxynaphthofluorescein shows good sensitivity in an alkaline pH range and it can be exploited in the construction of fiber-optic pH sensors. 5(6)-Carboxynaphthofluorescein can be used as a fluorescent pH indicator (Ex/Em=593/668 nm)[1].
Formula: C29H16O7
References: [1]Nevolova S, et al. Development of Fluorescent Assay for Monitoring of Dehalogenase Activity. Biotechnol J. 2019 Mar;14(3):e1800144.