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C.I. Pigment Blue 25

CAS 10127-03-4

2-Naphthalenecarboxamide, 4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[3-hydroxy-N-phenyl-

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

Molecular structure of 10127-03-4
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

CAS10127-03-4
PubChem CIDNot recorded
DTXSIDDTXSID6064957
FormulaC48H36N6O6
Mol. Weight792.852 g/mol
SMILESCOC1=CC(=CC=C1N=NC1=C2C=CC=CC2=CC(C(=O)NC2=CC=CC=C2)=C1O)C1=CC(OC)=C(C=C1)N=NC1=C2C=CC=CC2=CC(C(=O)NC2=CC=CC=C2)=C1O

Data Sources

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Brief citations

C.I. Pigment Blue 25 (CAS 10127-03-4) https://chemicalindependence.com/chemical/10127-03-4/ EPA TSCA Inventory: CAS 10127-03-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory