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Phosphonium, methyltriphenyl-, 3-[[4-[4-(1,1-dimethylpropyl)phenoxy]-2,7-dihydro-2,7-dioxo-6-[(4-sulfophenyl)amino]-3H-naphtho[1,2,3-de]quinolin-1-yl]carbonyl]benzenesulfonate (2:1)

CAS 1478437-64-7

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

Molecular structure of 1478437-64-7
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

CAS1478437-64-7
PubChem CIDNot recorded
DTXSIDDTXSID001353141
FormulaC78H66N2O10P2S2
Mol. Weight1317.46 g/mol
SMILESC[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1.C[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1.CCC(C)(C)C1=CC=C(OC2=C3NC(=O)C(C(=O)C4=CC=CC(=C4)S([O-])(=O)=O)=C4C5=C(C=CC=C5)C(=O)C(C(NC5=CC=C(C=C5)S([O-])(=O)=O)=C2)=C34)C=C1

Data Sources

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Brief citations

Phosphonium, methyltriphenyl-, 3-[[4-[4-(1,1-dimethylpropyl)phenoxy]-2,7-dihydro-2,7-dioxo-6-[(4-sulfophenyl)amino]-3H-naphtho[1,2,3-de]quinolin-1-yl]carbonyl]benzenesulfonate (2:1) (CAS 1478437-64-7) https://chemicalindependence.com/chemical/1478437-64-7/ EPA TSCA Inventory: CAS 1478437-64-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory