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Benzyltriphenylphosphonium chloride

CAS 1100-88-5

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

Molecular structure of 1100-88-5
1 Cl⁻
US productionCBI
Import value, 2024$598M
Import volume45.5K lb
Top sourceChina 89%

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 293149 · basket

EPA reports by year
2023
US production Confidential · Imports 45.5K lb
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 293149, which covers 114 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 89%ChinaIN 4%IndiaCA 3%CanadaDE 2%GermanyAR 1%Argentina

Why It Matters

Sectors
Plastics & RubberCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • •Chemical reaction regulator in All Other Basic Organic Chemical ManufacturingProcessing—repackaging
  • •Chemical reaction regulator in Synthetic Rubber ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS1100-88-5
PubChem CID70671
DTXSIDDTXSID6051566
FormulaC25H22ClP
Mol. Weight388.9 g/mol
SMILESC1=CC=C(C=C1)C[P+](C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4.[Cl-]

Data Sources

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Brief citations

Benzyltriphenylphosphonium chloride (CAS 1100-88-5) https://chemicalindependence.com/chemical/1100-88-5/ EPA CompTox (DSSTox): DTXSID6051566. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6051566 PubChem: 70671. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/70671 EPA Chemical Data Reporting: 1100-88-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1100-88-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293149 for CAS 1100-88-5. Reporting year: 2024. https://usatrade.census.gov/