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Tetraphenyl 1,4-phenylene bis(phosphate)

CAS 51732-57-1

EPA’s 2023 records show zero U.S. production of this chemical.

Molecular structure of 51732-57-1
US productionZero
Import volumeCBI
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. Production reporting year: 2023.

Where It Comes From

EPA reports by year
2023
US production Zero · Imports Confidential
2019
US production Confidential · Imports Confidential
Domestic parents -- activity not disclosed (1)
Icl Specialty Products North America

Why It Matters

Sectors
Textiles
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Dye in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS51732-57-1
PubChem CID6611235
DTXSIDDTXSID001037420
FormulaC30H24O8P2
Mol. Weight574.5 g/mol
SMILESC1=CC=C(C=C1)OP(=O)(OC2=CC=CC=C2)OC3=CC=C(C=C3)OP(=O)(OC4=CC=CC=C4)OC5=CC=CC=C5

Data Sources

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Brief citations

Tetraphenyl 1,4-phenylene bis(phosphate) (CAS 51732-57-1) https://chemicalindependence.com/chemical/51732-57-1/ EPA CompTox (DSSTox): DTXSID001037420. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID001037420 PubChem: 6611235. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6611235 EPA Chemical Data Reporting: 51732-57-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 51732-57-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting