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5-(and-6)-Carboxyfluorescein *Mixed isomers*
Product number : DB006    CAS number : 72088-94-9
5-(and-6)-Carboxyfluorescein *Mixed isomers*
≥97% (HPLC)
Molecular formula:C21H12O7Molecular weight:376.32
Alias:5(6)-FAM
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Product parameter:

Description
5(6)-Carboxyfluorescein contains a carboxylic acid that can be used to react with primary amines via carbodiimide activation of the carboxylic acid; cell-impermeant 5,6-FAM can also be used as a nonfixable polar tracer to investigate fusion, lysis and gap-junctional communication and to detect changes in cell or liposome volume.

References
[1]. Babcock DF. Examination of the intracellular ionic environment and of ionophore action by null point measurements employing the fluorescein chromophore. J Biol Chem. 1983 May 25;258(10):6380-9.
[2]. Bonizzoni M, et al. PAMAM dendrimer-induced aggregation of 5(6)-carboxyfluorescein. J Org Chem. 2012 Feb 3;77(3):1258-66.

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