Phosphorodithioic acid, mixed O,O-bis(1,3-dimethylbutyl and iso-Pr) esters, zinc salts

CAS 84605-29-8

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$489M

Top sourceItaly 41%

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 381121 · basket

EPA reports by year

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

These shares come from HS customs code 381121, which covers 22 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).

IT 41%ItalyCA 13%CanadaMX 12%MexicoJP 8%JapanSG 7%Singapore

United Kingdom
United Arab Emirates
Austria
Argentina
Ukraine
South Africa
Hungary
Lithuania
Australia
Switzerland
Colombia
Denmark
Turkey

EPA-registered manufacturers (1)

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

Newmarket

EPA-registered importers (2)

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

Brenntag Lubricants

Pennzoil-Quaker State

Why It Matters

Sectors

EnergyConsumer ProductsCore 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 3 sectors as 1 functional role.

•Lubricating agent in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Lubricating agent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Lubricating agent in Wholesale and Retail TradeProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS84605-29-8

PubChem CIDNot recorded

DTXSIDDTXSID0029054

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID0029054Retrieved 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

Phosphorodithioic acid, mixed O,O-bis(1,3-dimethylbutyl and iso-Pr) esters, zinc salts (CAS 84605-29-8) https://chemicalindependence.com/chemical/84605-29-8/ EPA CompTox (DSSTox): DTXSID0029054. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0029054 EPA Chemical Data Reporting: 84605-29-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 84605-29-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 381121 for CAS 84605-29-8. Reporting year: 2024. https://usatrade.census.gov/