Flag of the United StatesAmerican Chemical Independence

L-Cystine, sodium salt (1:2)

CAS 64704-23-0

EPA and Census publish no US supply data for this chemical.

Molecular structure of 64704-23-0
2 Na⁺
US productionNot reported
Top sourceNo public record

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

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

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

Chemical Identity

CAS64704-23-0
PubChem CIDNot recorded
DTXSIDDTXSID60889833
FormulaC6H10N2Na2O4S2
Mol. Weight284.26 g/mol
SMILES[Na+].[Na+].N[C@@H](CSSC[C@H](N)C([O-])=O)C([O-])=O

Data Sources

← Back to Dashboard

Brief citations

L-Cystine, sodium salt (1:2) (CAS 64704-23-0) https://chemicalindependence.com/chemical/64704-23-0/ EPA TSCA Inventory: CAS 64704-23-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory