126824-24-6O=C([O-])CN(CC(=O)[O-])c1ccccc1OCCOc1ccccc1N(CC(=O)[O-])CC(=O)[O-].[Na+].[Na+].[Na+].[Na+]ZWSMLJACYSGFKD-UHFFFAOYSA-Jbeige powder
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용도Suitable as Ca2+-indicator (fluorescence suppressed by Ca2+). Chelator with a greater selectivity for calcium compared to magnesium.
일반 설명Ca2+-chelator exhibiting a 105-fold greater affinity for Ca2+ (110 nM) than for Mg2+. After BAPTA complexes with Ca2+, the UV spectrum shifts from 254 to 279 nm at pH >6.0. Useful for spectrophotometric monitoring of extracellular Ca2+ levels, especially transient phenomena, because of its insensitivity to pH. Has been used for the measurement and control of Ca2+ levels in eggs, chromaffin cells, muscle cells, retinal cells, and pancreatic cells. In conjunction with certain formazan dyes, BAPTA can be used in a colorimetric assay for Mg2+. Has neuroprotective effects in vitro against excitotoxic damage and spontaneous recurrent seizures, such as epilepsy.
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126824-24-6DTXSID00370593