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C.I. Pigment Red 31

CAS 6448-96-0

2-Naphthalenecarboxamide, 3-hydroxy-4-[2-[2-methoxy-5-[(phenylamino)carbonyl]phenyl]diazenyl]-N-(3-nitrophenyl)-

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

Molecular structure of 6448-96-0
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.

Vendor Pricing

$18.80/gAA BLOCKS
CountryUnited States
Pack$94.00 / 5 g
PurityNot recorded
Vendors1 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS6448-96-0
PubChem CIDNot recorded
DTXSIDDTXSID2064365
FormulaC31H23N5O6
Mol. Weight561.554 g/mol
SMILESCOC1=C(C=C(C=C1)C(=O)NC1=CC=CC=C1)N=NC1=C2C=CC=CC2=CC(C(=O)NC2=CC=CC(=C2)[N+]([O-])=O)=C1O

Data Sources

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Brief citations

C.I. Pigment Red 31 (CAS 6448-96-0) https://chemicalindependence.com/chemical/6448-96-0/ EPA TSCA Inventory: CAS 6448-96-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory