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Sodium 1-methoxy-1-oxooctadecan-9-yl sulfate

CAS 139-99-1

Octadecanoic acid, 9-(sulfooxy)-, 1-methyl ester, sodium salt (1:1)

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

Molecular structure of 139-99-1
1 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

CAS139-99-1
PubChem CIDNot recorded
DTXSIDDTXSID60930273
FormulaC19H37NaO6S
Mol. Weight416.55 g/mol
SMILES[Na+].CCCCCCCCCC(CCCCCCCC(=O)OC)OS([O-])(=O)=O

Data Sources

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Brief citations

Sodium 1-methoxy-1-oxooctadecan-9-yl sulfate (CAS 139-99-1) https://chemicalindependence.com/chemical/139-99-1/ EPA TSCA Inventory: CAS 139-99-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory