Cayman is a manufacturer, supplier, and vendor of biochemical reagents,
assay kits, forensic chemistry standards, antibodies, and proteins for
scientific research. Analytical testing services and custom synthesis are
Cayman Chemical Company
· 1180 East Ellsworth Road
· Ann Arbor, Michigan 48108
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
1.Matés, J.M., Pèrez-Gómez, C., and Nuñez de Castro, I.Antioxidant enzymes and human diseases. Clin Biochem32(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 Med27(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 Chem278(5)3170-3175(2003).
Cayman Chemical Company regularly evaluates our shipping methods to ensure product stability is maintained and our corporate environmental impact is minimized. Products selected for review are evaluated and shipping methods are certified by our Scientists. While occasionally our method of shipping a product may change, rest assured the shipping conditions on all Cayman Chemical products have been reviewed and validated.
Upon receipt, it is important to check the storage requirements of your products and place them at the appropriate temperature. Products shipped without ice may require frozen storage for long term stability.
Cayman Chemical was formed over thirty years ago by demonstrating the value of naturally growing gorgonian corals as a renewable, economically viable source of prostaglandins. Today we operate our business knowing that we owe our start to the renewable resources our environment had provided. As Cayman Chemical continues to grow we consistently evaluate our business processes to ensure we are operating at the highest environmental standards.