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.
AP39 is a compound used to increase the levels of hydrogen sulfide (H2S) within mitochondria. It consists of a mitochondria-targeting motif (triphenylphosphonium) coupled to an H2S-donating moiety (dithiolethione) by an aliphatic linker. AP219 is a control compound for AP39, containing the triphenylphosphonium scaffold but lacking the H2S-releasing portion.