Difluorinated H2S probe 1 is a fluorescent probe for hydrogen sulfide (H2S).1It selectively fluoresces in the presence of H2S over Zn2+, Fe3+, S2O32-, ClO-, SO32-, H2O2, NO2-, cysteine (Cys), homocysteine (Hcy), and glutathione (GSH) when used at a concentration of 1 μM. Difluorinated H2S probe 1 displays excitation/emission maxima of 365/450 nm, respectively.
1.Zhang, J., Gao, Y., Kang, X., et al.o,o-Difluorination of aromatic azide yields a fast-response fluorescent probe for H2S detection and for improved bioorthogonal reactionsOrg. Biomol. Chem.15(19)4212-4217(2017)
FW1256 is a phenyl analog. It also a slow-releasing hydrogen sulfide (H2S) donor. FW1256 inhibits NF-κB activity and causes cell apoptosis. FW1256 shows potent anti-inflammatory effects. It also has the potential for cancer and cardiovascular disease trea
SPRC is a novel synthetic molecule exerting antioxidant effects via elevating the generation of endogenous H2S. SPRC activates Gp130-mediated STAT3 and prevents doxorubicin-induced cardiotoxicity.
MitoA is a ratiometric mass spectrometry probe that can be used for assessing changes in H2S within mitochondria in vivo. MitoA contains a triphenylphosphonium cation component that drives its accumulation in mitochondria where its aryl azide moiety selectively reacts with H2S to produce an amine product, MitoN. Quantifying the MitoN/MitoA ratio by LC-MS/MS reflects the mitochondrial matrix H2S concentration. In a mouse model of acute myocardial infarction with MitoA administered prior to ischemia, the MitoN/MitoA ratio is increased only in the region of ischemia.