Synonyms: Ethylenediaminetetraacetic acid disodium salt dihydrate, Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2 CAS: 6381-92-6 Empirical Formula: C10H14N2Na2O8 · 2H2O Molecular Weight: 372.24 g/mol Test Specification Description White to very light yellow fine crystalline powder Identification Conforms to structure and standard Assay (by Chelometric Titration) 99.0 - 101.0% pH of a 5% solution 4.0 - 6.0 Insoluble Matter