C.I. Pigment Red 187
CAS 59487-23-9
2-Naphthalenecarboxamide, 4-[2-[5-[[[4-(aminocarbonyl)phenyl]amino]carbonyl]-2-methoxyphenyl]diazenyl]-N-(5-chloro-2,4-dimethoxyphenyl)-3-hydroxy-
EPA and Census publish no US supply data for this chemical.
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 unknownWhere 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
CAS59487-23-9
PubChem CIDNot recorded
DTXSIDDTXSID4041733
FormulaC34H28ClN5O7
Mol. Weight654.08 g/mol
SMILESCOC1=CC(OC)=C(Cl)C=C1NC(=O)C1=CC2=CC=CC=C2C(N=NC2=CC(=CC=C2OC)C(=O)NC2=CC=C(C=C2)C(N)=O)=C1O
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
C.I. Pigment Red 187 (CAS 59487-23-9) https://chemicalindependence.com/chemical/59487-23-9/ EPA TSCA Inventory: CAS 59487-23-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory