5,5'-difluoro BAPTA AM ester ≥95% (by TLC) ion chelator, for calcium determinationLeverandør: Biotium
Difluoro BAPTA AM ester is a membrane permeable form of Difluoro BAPTA that can be loaded into cells by incubation. Difluoro BAPTA AM ester itself does not bind calcium, but once inside the cell is converted into Difluoro BAPTA by cytoplasmic esterases. See #50006 for information on Difluoro BAPTA.
- Cell permeability: Membrane permeant
- Colorless solid soluble in DMSO
- Store desiccated at -20°C
BAPTA and its derivatives are calcium chelators that are commonly used to form calcium buffers with well-defined calcium concentrations. By injecting the chelators into cells or by incubating cells with the AM ester form of the chelators, one can control the cytosolic calcium concentration, an important means to study the roles of calcium.
Key advantages of these calcium chelators include relative insensitivity toward intracellular pH change and fast release of calcium. Biotium offers several BAPTA chelators with calcium dissociation constants covering the biologically significant range from 10-7 to 10-2 M.