Empirical Formula (Hill Notation): C10H14N2Na2O8 · 2H2O, Molecular Weight: 372.24, reagent grade, 98.5-101.5% (titration), mp: 248 °C, Synonym: Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2.