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Benzamide, N-(4-amino-9,10-dihydro-9,10-dioxo-1-anthracenyl)-

CAS 81-46-9

Molecular structure of 81-46-9
US productionNot reported
Import value, 2024$872M
Top sourceSwitzerland 44%

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 292429 · basket

These shares come from HS customs code 292429, which covers 203 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CH 44%SwitzerlandCN 19%ChinaIN 12%IndiaJP 9%JapanIE 6%Ireland

Why It Matters

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

Chemical Identity

CAS81-46-9
PubChem CIDNot recorded
DTXSIDDTXSID6058847
FormulaC21H14N2O3
Mol. Weight342.354 g/mol
SMILESNC1=C2C(=O)C3=C(C=CC=C3)C(=O)C2=C(NC(=O)C2=CC=CC=C2)C=C1

Data Sources

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Brief citations

Benzamide, N-(4-amino-9,10-dihydro-9,10-dioxo-1-anthracenyl)- (CAS 81-46-9) https://chemicalindependence.com/chemical/81-46-9/ EPA TSCA Inventory: CAS 81-46-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292429 for CAS 81-46-9. Reporting year: 2024. https://usatrade.census.gov/