SML3326

WSP5

≥90% (HPLC)

• Synonym(s): 1,1′-(3-Oxospiro[isobenzofuran-1(3H),9′-[9H]xanthene]-3′,6′-diyl) bis[2-(2-pyridinyldithio)benzoate], Benzoic acid, 2-(2-pyridinyldithio)-, 1,1′-(3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthene]-3′,6′-diyl) ester, H2S fluorescent probe WSP5, Hydrogen sulfide fluorescent probe WSP-5, WSP-5
• Empirical Formula (Hill Notation): C₄₄H₂₆N₂O₇S₄
• CAS Number: 1593024-78-2
• Molecular Weight: 822.95
• UNSPSC Code: 12352200
• NACRES: NA.21

Properties

• Quality Level: 100
• assay: ≥90% (HPLC)
• form: powder
• color: white to beige
• solubility: DMSO: 2 mg/mL, clear (Warmed)
• storage temp.: 2-8°C
• SMILES string: O=C(C1=C(SSC2=NC=CC=C2)C=CC=C1)OC3=CC=C4C(OC5=CC(OC(C6=C(SSC7=NC=CC=C7)C=CC=C6)=O)=CC=C5C48OC(C9=C8C=CC=C9)=O)=C3

Description

Biochem/physiol Actions

WSP5 is a cell-permeable fluoresceinyl pyridine disulfide compound that acts as a highly selective, fast- and time-dependent nucleophilic substitution–cyclization-based H2S sensitive fluorescent turn-on live cells probe (60-fold; ƛex = 502 nm & ƛem = 525 nm; ɸ = 0.20 & a detection limit = 47 nM). WSP5 is reported to function over biological pH ranges and insensitive towards bio-thiols, various reactive sulfur species and esterases.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable