... per Pb2+):0.001%max Commodity: EDTA-2Na Synonyms:Ethylenediaminetetraacetic, Disodium salt, dihydrate MF: C10H14N2Na2O8·2H2O CAS: 139-33-3 Molecular weight ... 532 85039389 Moble: +86 15866835662 Skype: captain_lion EDTA-2Na (Ethylenediaminetetraacetic, Disodium salt, dihydrate)