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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
BAPTA (1,2-bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid) is a calcium-specific aminopolycarboxylic acid. The presence of four carboxylic acid functional groups makes possible the binding of two calcium ions. The extensive flexibility of the carboxylate ligands is critical to the coordination of calcium and other metal ions.
- Ricci AJ, Wu YC, Fettiplace R (15 October 1998). "The endogenous calcium buffer and the time course of transducer adaptation in auditory hair cells.". The Journal of Neuroscience 18 (20): 8261–77. PMID 9763471.