Formulation: A solid
Formal Name: 2-mercapto-benzoic acid, 6′-[(2-mercaptobenzoyl)oxy]-3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3′-yl ester
Purity: ≥95%
Formula Markup: C34H20O7S2
Formula Weight: 604,6
Shelf life (days): 730
CAS Number: 1810731-98-6
Notes: Sulfane sulfur probe 4 (SSP4) is a fluorescent probe for sulfane sulfur species, including endogenously generated hydrogen sulfide-derived polysulfides, hydropersulfides, and persulfides.{64979} In the presence of sulfane sulfur species, SSP4 is subject to a nucleophilic reaction resulting in the formation of fluorescein, which displays excitation/emission maxima of 494/515 nm, respectively, and two molecules of 1,2-benzodithiol-3-one.{64979,64982} SSP4 has been used to determine localization of H2S3 in primary mouse neurons and to detect polysulfides in L. japonicus seedling roots.{64980,64981}
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