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Methyltin tris(isooctyl mercaptoacetate)

CAS 54849-38-6

Acetic acid, 2,2',2''-[(methylstannylidyne)tris(thio)]tris-, 1,1',1''-triisooctyl ester

Molecular structure of 54849-38-6
US productionNot reported
Import value, 2024$760M
Top sourceChina 33%

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 293090 · basket

These shares come from HS customs code 293090, which covers 418 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 33%ChinaES 14%SpainCH 9%SwitzerlandIT 7%ItalyIN 7%India

Why It Matters

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

Chemical Identity

CAS54849-38-6
PubChem CIDNot recorded
DTXSIDDTXSID9025667
FormulaC31H60O6S3Sn
Mol. Weight743.71 g/mol
SMILESC*.C*.C*.CCCCCCCOC(=O)CS[Sn](C)(SCC(=O)OCCCCCCC)SCC(=O)OCCCCCCC |lp:13:2,15:2,17:2,20:2,23:2,24:2,32:2,35:2,36:2,m:1:25.26.27.28.29.30,3:12.11.10.9.8.7,5:37.38.39.40.41.42|

Data Sources

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Brief citations

Methyltin tris(isooctyl mercaptoacetate) (CAS 54849-38-6) https://chemicalindependence.com/chemical/54849-38-6/ EPA TSCA Inventory: CAS 54849-38-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293090 for CAS 54849-38-6. Reporting year: 2024. https://usatrade.census.gov/