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1H-Phosphole, 2,5-dihydro-3-methyl-1-phenyl-, 1-oxide

CAS 7564-51-4

EPA and Census publish no US supply data for this chemical.

Molecular structure of 7564-51-4
US productionNot reported
Top sourceNo public record

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS7564-51-4
PubChem CIDNot recorded
DTXSIDDTXSID80884406
FormulaC11H13OP
Mol. Weight192.198 g/mol
SMILESCC1=CCP(=O)(C1)C1=CC=CC=C1

Data Sources

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Brief citations

1H-Phosphole, 2,5-dihydro-3-methyl-1-phenyl-, 1-oxide (CAS 7564-51-4) https://chemicalindependence.com/chemical/7564-51-4/ EPA TSCA Inventory: CAS 7564-51-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory