Nitrilotriacetic acid trisodium salt, monohydrate, min. 99 %, extra pure, Molar mass (M) 275,10 g/mol, Density (D) 1,77 g/cm³, CAS No. [18662-53-8], EG-Nr. 225-768-6, Empirical formula C6H6NO6Na3 · H2O