Dibutyltinbis(lauryl mercaptide)

CAS 1185-81-5

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$760M

Top sourceChina 33%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. 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

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

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

Country of origin for US imports, from Census customs data (2024).

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

Israel
Croatia
Ukraine
Slovakia
United Arab Emirates
Ireland
Poland
Lithuania
Brazil
Singapore
Australia
Armenia
Hong Kong
Vietnam
Czech Republic
Hungary
Greece
Russia

EPA-registered manufacturers (3)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Galata Chemicals

Milliken &

Proviron

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Polymer Additves

Why It Matters

Sectors

Plastics & RubberCore Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 3 functional roles.

•Heat stabilizer in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Foamant in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in All Other Basic Organic Chemical Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1185-81-5

PubChem CID9561614

DTXSIDDTXSID2024959

FormulaC32H68S2Sn

Mol. Weight635.7 g/mol

SMILESCCCCCCCCCCCCS[Sn](CCCC)(CCCC)SCCCCCCCCCCCC

Data Sources

EPA CompTox (DSSTox) · DTXSID2024959Retrieved 2026-04-06
PubChem · compound 9561614Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Dibutyltinbis(lauryl mercaptide) (CAS 1185-81-5) https://chemicalindependence.com/chemical/1185-81-5/ EPA CompTox (DSSTox): DTXSID2024959. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2024959 PubChem: 9561614. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/9561614 EPA Chemical Data Reporting: 1185-81-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1185-81-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 1185-81-5. Reporting year: 2024. https://usatrade.census.gov/