Ethylenediaminetetraacetic acid disodium salt dihydrate

InChI

1S/C10H16N2O8.2Na.2H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;2*1H2/q;2*+1;;/p-2

InChI key

OVBJJZOQPCKUOR-UHFFFAOYSA-L

SMILES string

O.O.O.O.[Na+].[Na+].[Na+].[Na+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC(O)=O.OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

agency

tested according to BP, tested according to Ph. Eur., tested according to USP

reg. compliance

tested according to FCC

assay

99.0-101.0%

form

crystals

quality

meets analytical specification of Ph. Eur., BP, USP, FCC

reaction suitability

reagent type: chelator

impurities

residual solvents, complies, ≤0.001% cyanide (CN), ≤0.001% heavy metals (as Pb), ≤0.1% nitrilotriacetic acid (HPLC) (HPLC)

loss

8.7-11.4% loss on drying, 200 °C, 3 h

pH

4-5 (20 °C, 5%)

mp

248 °C (dec.) (lit.)

solubility

water: soluble 100 g/L at 20 °C

anion traces

chloride (Cl^-): ≤100 mg/kg, sulfate (SO₄^2-): ≤500 mg/kg

cation traces

As: ≤1 mg/kg, Ca:, in accordance, Fe: ≤10 mg/kg, Pb: ≤10 mg/kg

application(s)

pharmaceutical (small molecule)

Quality Level

200