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1-((2-Hydroxy-4-nitrophenyl)azo)-2-naphthol

CAS 6434-57-7

2-Naphthalenol, 1-[2-(2-hydroxy-4-nitrophenyl)diazenyl]-

Molecular structure of 6434-57-7
US productionNot reported
Import value, 2024$50M
Top sourceIndonesia 23%

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

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292700 · basket

These shares come from HS customs code 292700, which covers 89 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
ID 23%IndonesiaJP 18%JapanMX 16%MexicoCN 13%ChinaKR 8%South Korea

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS6434-57-7
PubChem CIDNot recorded
DTXSIDDTXSID8064357
FormulaC16H11N3O4
Mol. Weight309.281 g/mol
SMILESOC1=CC(=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12)[N+]([O-])=O

Data Sources

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Brief citations

1-((2-Hydroxy-4-nitrophenyl)azo)-2-naphthol (CAS 6434-57-7) https://chemicalindependence.com/chemical/6434-57-7/ EPA TSCA Inventory: CAS 6434-57-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292700 for CAS 6434-57-7. Reporting year: 2024. https://usatrade.census.gov/