h2s

H2S Fluorescent probe 1 (Compound 2) is a fluorescent probe for detecting hydrogen sulfide (H2S) with minimal cytotoxicity. When HS- is added to the DMSO solution of H2S Fluorescent probe 1, a new absorption peak appears at 485 nm. During the titration of HS-, the fluorescence intensity at 434 nm increases rapidly.

HBTP-H2S (chloride) is a near-infrared fluorescent probe designed for in situ bioimaging of endogenous H2S in rice roots under conditions of aluminum stress and flooding stress.

Sulfidefluor-7 AM (SF7-AM) is an effective and cell permeable fluorescent probe for hydrogen sulfide (h2s). Sulfidefluor-7 AM contains acetoxy-methyl ester, which is hydrolyzed intracellular to capture the probe.

7-(2,4-Dinitrophenoxy)-4-methyl-2H-chromen-2-one (Compound 1) serves as a fluorescent probe for detecting hydrogen sulfide (H2S). It is characterized by a low detection limit (4×10^-6 mol/L), high selectivity, and great sensitivity. At a concentration of 150 µg/mL, it exhibits negligible cytotoxicity. The excitation wavelength is 331 nm, while in DMSO solvent, it emits at approximately 385 nm; upon addition of HS-, the fluorescence intensity significantly increases around 392 nm.

MitoA (bromide) is a mitochondrial-targeting probe for H2S that can be used to assess relative changes in mitochondrial H2S levels in vivo. Due to the presence of the triphenylphosphonium (TPP) cation, MitoA (bromide) accumulates within mitochondria in tissues in vivo. It is useful for studying myocardial ischemia.

CAY10732 is a fluorophore for the detection of hydrogen sulfide for H2S imaging in living cells.

WSP-5 (Washington State Probe-5) is a fluorescent probe containing an active disulfide group, used for rapid detection of H2S in biological samples and cells.

CAY10731 is a fluorescent probe for hydrogen sulfide (H2S).[1] Upon reaction with H2S, fluorescein (FITC) is released and its fluorescence can be used to detect H2S. FITC displays excitation/emission maxima of 485/535 nm, respectively. CAY10731 is selective for H2S over glutathione (GSH), cysteine, H2O3-, SO3-, and H2O2 as well as tBuO and OH radicals. It has been used to detect H2S in rat hippocampal slices and nematodes.

PRO-F, a photoactivable hydrogen sulfide (H2S) donor, possesses reactive oxygen species (ROS) scavenging properties and emits a fluorescent signal upon light activation, enabling real-time tracking of H2S release. Its activation is independent of endogenous substance consumption and facilitates intracellular H2S delivery, safeguarding cells from excessive ROS-induced damage. Notably, PRO-F has demonstrated efficacy in promoting chronic wound healing in diabetic models [1].

HPI is an HS-fluorescent probe (Ex/Em=280/410 nm) that can be utilized to detect the HS- form of hydrogen sulfide (H2S) gas in environmental water samples [1].