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SML4360

Aminophenyl-fluorescein

≥98% (HPLC)

Synonym(s):

3′-p-(Aminophenyl) fluorescein, 2-[6-(4′-Amino)phenoxy-3H-xanthen-3-on-9-yl]benzoic acid, 3′-(4-Aminophenoxy)-6′-hydroxyspiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, APF, APF, Fluorescent probe

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About This Item

Empirical Formula (Hill Notation):
C26H17NO5
CAS Number:
Molecular Weight:
423.42
UNSPSC Code:
12352200
Assay:
≥98% (HPLC)
Form:
powder
Storage condition:
desiccated
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Quality Segment

assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

light yellow to orange

solubility

DMSO: 2 mg/mL, clear

storage temp.

-10 to -25°C

Biochem/physiol Actions

Aminophenyl-fluorescein (APF), a cell-permeable and photostable probe, is designed for the selective detection of highly reactive oxygen and nitrogen species (hROS & hRNS), notably hypochlorite (OClˉ), hydroxyl radicals (HO•), and peroxynitrite (ONOOˉ) over minimally reactive H2O2, O2ˉ•, NO, 1O2 and ROO•. Initially exhibiting weak fluorescence (ε455 = 24,000 M-1cm-1, Φ: 0.008), APF undergoes O-dearylation upon reaction with these species, releasing its amino-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). APF′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


pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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