Bis(O,O-diisooctyl phosphorodithioato-κS,κS')zinc

CAS 28629-66-5

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

Molecular structure of 28629-66-5 — 1 Zn²⁺

US productionCBI

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

Top sourceNo public record

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.

Where It Comes From

EPA reports by year

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

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.

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

CAS28629-66-5

PubChem CID22494421

DTXSIDDTXSID9027946

FormulaC32H68O4P2S4Zn

Mol. Weight772.5 g/mol

SMILESCC(C)CCCCCOP(=S)(OCCCCCC(C)C)[S-].CC(C)CCCCCOP(=S)(OCCCCCC(C)C)[S-].[Zn+2]

Data Sources

EPA CompTox (DSSTox) · DTXSID9027946Retrieved 2026-04-06
PubChem · compound 22494421Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

Bis(O,O-diisooctyl phosphorodithioato-κS,κS')zinc (CAS 28629-66-5) https://chemicalindependence.com/chemical/28629-66-5/ EPA CompTox (DSSTox): DTXSID9027946. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9027946 PubChem: 22494421. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/22494421 EPA Chemical Data Reporting: 28629-66-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 28629-66-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting