Product Description: Fluorescein Biotin is used as an alternative to radioactive biotin for detecting and quantitating biotin-binding sites by either fluorescence or absorbance; the the fluorescence or absorbance of Fluorescein Biotin is quenched, upon binding to avidin or streptavidin.
Formula: C42H50N6O8S2
References: [1]Gruber HJ, et al. Accurate titration of avidin and streptavidin with biotin-fluorophore conjugates in complex, colored biofluids. Biochim Biophys Acta. 1998 Jul 23;1381(2):203-12.