Item № 10157
CAS № 359010-70-1
Purity ≥98%
500 µg $124.00 $0.00
1 mg $236.00 $0.00
5 mg $992.00 $0.00

Pricing updated 2016-05-01. Prices are subject to change without notice.

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The biology of highly reactive oxygen radical species is of great interest in many biomedical research disciplines, including, neurodegeneration and aging, cancer, and infectious diseases.1 There are a number of fluorescent reagents that can be used to detect free radicals, such as 2,7-dichlorodihydrofluorescein (DCDHF), but they have significant limitations due to their facile oxidation by light and numerous non-radical oxidants such as hydrogen peroxide (H2O2).2 APF is an aromatic amino-fluorescein derivative that has little intrinsic fluorescence. It undergoes oxidation only by the hydroxyl radical, hypochlorite ion, and certain peroxidase intermediates, but is inert to NO, H2O2, superoxide, and other oxidants. Upon oxidation, APF is converted to the highly fluorescent molecule fluorescein, allowing the simple direct detection of highly reactive biological radicals.3

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Technical Information
Formal Name 2-[6-(4-aminophenoxy)-3-oxo-3H-xanthen-9-yl]-benzoic acid
CAS Number 359010-70-1
Molecular Formula C26H17NO5
Formula Weight 423.4
Purity ≥98%
Formulation A solution in methyl acetate
λmax 223, 278 nm
SMILES Nc1ccc(cc1)Oc1ccc2c(c1)Oc1cc(O)ccc1C12OC(=O)c2ccccc12
InChI Code 1S/C26H17NO5/c27-15-5-8-17(9-6-15)30-18-10-12-22-24(14-18)31-23-13-16(28)7-11-21(23)26(22)20-4-2-1-3-19(20)25(29)32-26/h1-14,28H,27H2

WARNING - This product is not for human or veterinary use.

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Storage -20°C
Shipping Room temperature in continental US; may vary elsewhere
Stability As supplied, 1 year from the QC date provided on the Certificate of Analysis, when stored properly
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References & Background Reading
Product Description References

1. Matés, J.M., Pèrez-Gómez, C., and Nuñez de Castro, I. Antioxidant enzymes and human diseases. Clin Biochem 32(8) 595-603 (1999).

2. Hempel, S.L., Buettner, G.R., O'Malley, Y.Q., et al. Dihydrofluorescein diacetate is superior for detecting intracellular oxidants: Comparison with 2',7'-dichlorodihydrofluorescein diacetate, 5(and 6)-carboxy-2',7'-dichlorodihydrofluorescein diacetate, and dihydrorhodamine 123. Free Radic Biol Med 27(1) 146-159 (1999).

3. Setsukinai, K., Urano, Y., Kakinuma, K., et al. Development of novel fluorescence probes that can reliably detect reactive oxygen species and distinguish specific species. J Biol Chem 278(5) 3170-3175 (2003).

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