EGTA (Ethylene Glycol Bis(2-Aminoethylether) N,N,N',N'-Tetraacetic Acid) is a high-purity chelating agent used primarily for calcium binding in laboratory experiments. The 500-gram quantity is ideal for large-scale applications in molecular biology, biochemistry, and analytical chemistry. EGTA is known for its ability to specifically chelate calcium ions, making it invaluable in experiments studying calcium-dependent processes, including enzyme activity, signal transduction, and muscle contraction. It is often used in protein assays, DNA analysis, and other biochemical applications where controlling calcium concentration is crucial. The reagent is available in analytical grade, ensuring consistency and accuracy in experimental results.