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4,4′-Biphenyltetracarboxylic dianhydride

CAS 2420-87-3

U.S. production volumes are classified as confidential business information.

Molecular structure of 2420-87-3
US productionCBI
Import value, 2024$316M
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. US production volume is confidential. 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 Confidential · 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)
Ube America
EPA-registered importers (1)
Dupont Specialty Products Usa

Why It Matters

Sectors
Core Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Intermediate in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.14/gAaron Chemicals LLC
CountryHong Kong
Pack$72.00 / 500 g
Purity98%
Vendors24 available

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

23 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.16500 g98%
A2B Chem LLCUnited States$0.181 kg97%
AA BLOCKSUnited States$0.201 kg97%
ChemsceneUnited States$0.251 kg—
BLD Pharmatech Co., LimitedUnited States$0.251 kg97%
BLD Pharmatech GmbHGermany$0.251 kg97%
BLD Pharmatech Ltd.China$0.251 kg97%
Ambeed, Inc.United States$0.251 kg97%
Combi-Blocks, Inc.United States$0.251 kg96%
Fluorochem EUGermany$0.26500 g96%
AK Scientific SpecializedUnited States$0.28500 g95%
AstaTech, IncUnited States$0.31500 g97%
AK Scientific, Inc.United States$0.39500 g98%
MedChemExpress MCESweden$0.50100 g98%
Angene International LimitedUnited States$0.50500 g95%
Apollo Scientific UKUnited Kingdom$0.50500 g97%
Fluorochem UKUnited Kingdom$0.8610 g96%
Sigma-Aldrich (Rush Stock)Germany$2.9325 g97%
Sigma-AldrichGermany$2.9325 g97%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg98%
InterbioscreenHong Kong$4864.50100 mg95%

Chemical Identity

CAS2420-87-3
PubChem CID75494
DTXSIDDTXSID8044886
FormulaC16H6O6
Mol. Weight294.21 g/mol
SMILESC1=CC2=C(C=C1C3=CC4=C(C=C3)C(=O)OC4=O)C(=O)OC2=O

Data Sources

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Brief citations

4,4′-Biphenyltetracarboxylic dianhydride (CAS 2420-87-3) https://chemicalindependence.com/chemical/2420-87-3/ EPA CompTox (DSSTox): DTXSID8044886. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8044886 PubChem: 75494. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/75494 EPA Chemical Data Reporting: 2420-87-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 2420-87-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291739 for CAS 2420-87-3. Reporting year: 2024. https://usatrade.census.gov/