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1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone

CAS 89-32-7

EPA’s 2023 records show zero U.S. production of this chemical.

Molecular structure of 89-32-7
US productionZero
Import value, 2024$316M
Import volumeCBI
Top sourceSouth Korea 19%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291739 · basket

EPA reports by year
2023
US production Zero · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 291739, which covers 103 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 19%South KoreaCN 19%ChinaIN 18%IndiaES 13%SpainCA 9%Canada
Domestic parents -- activity not disclosed (1)
Avient
EPA-registered importers (5)
Arxada
Dupont Specialty Products Usa
Essex Furukawa Magnet Wire Usa
Goulston Technologies
Pht International

Why It Matters

Sectors
Plastics & RubberTextilesPaints & Coatings
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

  • •Monomers in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
  • •Intermediate in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Anti-static agent in Textiles, apparel, and leather manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.09/gA2B Chem LLC
CountryUnited States
Pack$46.00 / 500 g
Purity99.88%
Vendors13 available

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

12 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.11500 g99.88%
Apollo Scientific USUnited Kingdom$0.132.5 kg98%
AK Scientific SpecializedUnited States$0.191 kg95%
Combi-Blocks, Inc.United States$0.251 kg97%
AK Scientific, Inc.United States$0.261 kg98%
ALFA AESARGermany$0.262.5 kg97%
Sigma-Aldrich (Rush Stock)Germany$0.54500 g97%
Sigma-AldrichGermany$0.54500 g97%
Fluorochem UKUnited Kingdom$6.295 g97%
Labotest KGGermany$217.805000 mg90%
Otava, Ltd.Ukraine$2280.0050 mg95%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg95%

Chemical Identity

CAS89-32-7
PubChem CID6966
DTXSIDDTXSID1026536
FormulaC10H2O6
Mol. Weight218.12 g/mol
SMILESC1=C2C(=CC3=C1C(=O)OC3=O)C(=O)OC2=O

Data Sources

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Brief citations

1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone (CAS 89-32-7) https://chemicalindependence.com/chemical/89-32-7/ EPA CompTox (DSSTox): DTXSID1026536. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1026536 PubChem: 6966. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6966 EPA Chemical Data Reporting: 89-32-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 89-32-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291739 for CAS 89-32-7. Reporting year: 2024. https://usatrade.census.gov/