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EDTA monosodium salt

CAS 17421-79-3

Glycine, N,N'-1,2-ethanediylbis[N-(carboxymethyl)-, sodium salt (1:1)

Molecular structure of 17421-79-3
1 Na⁺
US productionNot reported
Import value, 2024$503M
Top sourceChina 25%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292249 · basket

These shares come from HS customs code 292249, which covers 170 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 25%ChinaIN 17%IndiaSG 13%SingaporeIT 9%ItalyCH 7%Switzerland

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS17421-79-3
PubChem CIDNot recorded
DTXSIDDTXSID5058272
FormulaC10H15N2NaO8
Mol. Weight314.226 g/mol
SMILES[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC(O)=O

Data Sources

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Brief citations

EDTA monosodium salt (CAS 17421-79-3) https://chemicalindependence.com/chemical/17421-79-3/ EPA TSCA Inventory: CAS 17421-79-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292249 for CAS 17421-79-3. Reporting year: 2024. https://usatrade.census.gov/