Sodium methyl sulfate

Sodium methyl sulfate is a processing aid, arising in and permitted for use in certain manufacturing operations.

Where it is and isn’t permitted

Status of Sodium methyl sulfate by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted, with conditions21 CFR 173.385retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Produced by reacting methanol with sulfuric acid and neutralising.

  • Vegan
  • Vegetarian
InChIKey
DZXBHDRHRFLQCJ-UHFFFAOYSA-M
PubChem
CID 2735086

Every name it appears under

17 recorded names. A label may use any of them.

CAS registry number

  • 512-42-5

As it appears in regulation

  • Sodium methyl sulfate

Other names

  • CAS-512-42-5
  • MeOSO3Na
  • Methanesulfuric Acid Sodium Salt
  • Methyl sodium sulfate
  • Methyl sulfate, sodium salt
  • Methylsulfuric Acid Sodium Salt
  • Salicylic Acid Impurity 8
  • Sodium methyl sulfate
  • Sodium Methyl Sulfate(Discontinued,See C4X-19028)
  • Sodium methyl sulphate
  • Sodium methylsulfate
  • Sodium monometh
  • Sodium monomethylsulfate
  • SULFURIC ACID, MONOMETHYL ESTER, SODIUM SALT
  • Sulfuric acid, monomethyl ester, sodium salt (1:1)

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/sodium-methyl-sulfate.json