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About This Item
Empirical Formula (Hill Notation):
C26H16O6
CAS Number:
Molecular Weight:
424.40
UNSPSC Code:
12352200
assay
≥98% (HPLC)
form
powder
storage condition
desiccated
color
white to beige
solubility
DMSO: 2 mg/mL, clear
storage temp.
-10 to -25°C
Quality Level
Biochem/physiol Actions
Hydroxyphenyl-fluorescein (HPF), a cell-permeable and photostable fluorescent probe, is specifically designed for the selective detection of primarily hydroxyl radicals (HO•), and peroxynitrite (ONOOˉ) over minimally reactive H2O2, O2ˉ•, NO, 1O2 and ROO•. Initially exhibiting weak fluorescence (ε454 = 28,000 M-1cm-1, Φ: 0.006), HPF undergoes O-dearylation upon reaction with these species, releasing its hydroxy-phenoxy group and generating intensely fluorescent fluorescein, which leads to a dose-dependent fluorescence signal increase (λex/λem: 490/515 nm) and significantly enhanced optical properties (ε492 = 84,000 M-1cm-1, Φ: 0.85). HPF′s inherent selectivity, complete autoxidation resistance, low toxicity, and quantitative fluorescence response establish it as a valuable tool for applications spanning microscopy, enzymatic assays, and multiplexing.
Disclaimer
Hygroscopic, store with desiccant
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