Methyl trifluoromethanesulfonate

CAS 333-27-7

Methanesulfonic acid, 1,1,1-trifluoro-, methyl ester

Molecular structure of 333-27-7
US productionNot reported
Import value, 2024$103M
Top sourceGermany 46%

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 290519 · basket

These shares come from HS customs code 290519, which covers 122 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 46%GermanyMX 17%MexicoIN 11%IndiaCN 7%ChinaJP 3%Japan

Why It Matters

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

Vendor Pricing

$0.36/gManchester Organics
CountryUnited Kingdom
Pack$1811.94 / 5 kg
Purity90%
Vendors18 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS333-27-7
PubChem CIDNot recorded
DTXSIDDTXSID6049272
FormulaC2H3F3O3S
Mol. Weight164.1 g/mol
SMILESCOS(=O)(=O)C(F)(F)F

Data Sources

Brief citations

Methyl trifluoromethanesulfonate (CAS 333-27-7) https://chemicalindependence.com/chemical/333-27-7/ EPA TSCA Inventory: CAS 333-27-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290519 for CAS 333-27-7. Reporting year: 2024. https://usatrade.census.gov/