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C.I.Solvent Red 18

CAS 6483-64-3

2-Naphthalenol, 1,1'-[(phenylmethylene)bis[(2-methoxy-4,1-phenylene)-2,1-diazenediyl]]bis-

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

Molecular structure of 6483-64-3
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

CAS6483-64-3
PubChem CIDNot recorded
DTXSIDDTXSID0052332
FormulaC41H32N4O4
Mol. Weight644.731 g/mol
SMILESCOC1=CC(=CC=C1N=NC1=C(O)C=C2C=CC=CC2=C1)C(C1=CC=CC=C1)C1=CC(OC)=C(C=C1)N=NC1=C(O)C=CC2=CC=CC=C12

Data Sources

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Brief citations

C.I.Solvent Red 18 (CAS 6483-64-3) https://chemicalindependence.com/chemical/6483-64-3/ EPA TSCA Inventory: CAS 6483-64-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory