Ethyltriphenylphosphonium iodide

CAS 4736-60-1

Used in 2 industrial sectors tracked by the EPA.

US production79.9K lb

Import volumeZero

Import dependency0%

Top sourceNo public record

Production is reported production, not a complete census of factories. 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 293149 · basket

EPA reports by year

2023: US production 79.9K lb · Imports Zero
2019: US production 119.7K lb · Imports Zero

HS customs code 293149 covers 114 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

EPA-registered manufacturers (2)

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

Toyota Tsusho · JP Japan

Deepwater Chemicals

Why It Matters

Sectors

Plastics & RubberPaints & Coatings

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 1 functional role.

•Catalyst in Plastics Material and Resin Manufacturing (50%)Processing as a reactant
•Catalyst in Paint and Coating Manufacturing (50%)Processing as a reactant

Chemical Identity

CAS4736-60-1

PubChem CID78474

DTXSIDDTXSID1052117

FormulaC20H20IP

Mol. Weight418.2 g/mol

SMILESCC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[I-]

Data Sources

EPA CompTox (DSSTox) · DTXSID1052117Retrieved 2026-04-06
PubChem · compound 78474Retrieved 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

Ethyltriphenylphosphonium iodide (CAS 4736-60-1) https://chemicalindependence.com/chemical/4736-60-1/ EPA CompTox (DSSTox): DTXSID1052117. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1052117 PubChem: 78474. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/78474 EPA Chemical Data Reporting: 4736-60-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 4736-60-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting