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Fluorescent Dyes  >  Reactive Fluorescent Dyes  >>  5(6)-FAM

Product Name 5(6) - FAM
[5 - (and - 6) - Carboxyfluorescein] *UltraPure Grade* *Mixed Isomers*
Size 1 g
Catalog # AS-81002-1
US$ $125
Purity >90%

Although FITC reagents have been more often used to prepare fluoresceinated bioconjugates, the low stability of FITC bioconjugates makes some researchers use amine-reactive succinimidyl esters of carboxyfluorescein (commonly called FAM) in bioconjugations. FAM reagents give carboxamides that are more resistant to hydrolysis. We have shown that FAM reagents require less stringent reaction conditions and give better conjugation yields, and the resulted conjugates have superior stability. We noted that FITC labeled peptides tend to deteriorate more quickly than the corresponding FAM conjugates.

Detailed Information Material Safety Data Sheets (MSDS)
Storage -20C desiccated and protected from light
References 1. Biswas S, et al. J Colloid Interface Sci 271, 157-62; (2004).
2. Ma LY, et al. Spectrochim Acta A Mol Biomol Spectrosc 60, 1865-72; (2004).
3. Kermis HR, et al. Analyst 128, 1181-6; (2003).
4. Kermis HR, et al. Biotechnol Prog 18, 1047-53; (2002).
5. Ozkan P, et al. R Biochim Biophys Acta 1572, 143-8; (2002).
6. Marechal X, et al. Photochem. Photobiol 70, (5) 813-819; (1999).
Molecular Weight 376.32
Molecular Formula C21H12O7
Spectral Properties Abs/Em = 494/519 nm
Solvent System DMF or DMSO
Product Citations Carroll, NJ. et al. (2014). Measurement of flow velocity and inference of liquid viscosity in a microfluidic channel by fluorescence photobleaching. Langmuir 30, 4868.
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