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9,10-Anthracenedione, 1-chloro-2-methyl-

CAS 129-35-1

Molecular structure of 129-35-1
US productionNot reported
Import value, 2024$175M
Top sourceIndia 48%

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 291479 · basket

These shares come from HS customs code 291479, which covers 95 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 48%IndiaCN 20%ChinaMX 19%MexicoDE 10%GermanyFI 2%Finland

Why It Matters

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

Chemical Identity

CAS129-35-1
PubChem CIDNot recorded
DTXSIDDTXSID4059598
FormulaC15H9ClO2
Mol. Weight256.69 g/mol
SMILESCC1=C(Cl)C2=C(C=C1)C(=O)C1=CC=CC=C1C2=O

Data Sources

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Brief citations

9,10-Anthracenedione, 1-chloro-2-methyl- (CAS 129-35-1) https://chemicalindependence.com/chemical/129-35-1/ EPA TSCA Inventory: CAS 129-35-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291479 for CAS 129-35-1. Reporting year: 2024. https://usatrade.census.gov/