2-Norbornene-5,6-dicarboxylic anhydride

CAS 826-62-0

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

US productionZero

Import value, 2024$37M

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceChina 25%

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 291720 · basket

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 291720, which covers 42 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 25%ChinaIT 21%ItalyJP 21%JapanDE 14%GermanyIN 9%India

Ukraine
South Africa
Malaysia
Netherlands
Mexico
United Kingdom
Switzerland
Latvia
Canada

Domestic parents -- activity not disclosed (2)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Aurorium

Marubeni America

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

The Sherwin Williams

Why It Matters

Sectors

Plastics & RubberCore Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.02/gAaron Chemicals LLC

CountryHong Kong

Pack$11.00 / 500 g

Purity97%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.03	500 g	97%
A2B Chem LLC	United States	$0.03	1 kg	95%
AA BLOCKS	United States	$0.03	1 kg	95%
Ambeed, Inc.	United States	$0.04	1 kg	95%
Angene International Limited	United States	$0.19	250 g	98%
AK Scientific Specialized	United States	$0.57	100 g	95%
AK Scientific, Inc.	United States	$0.79	100 g	97%
AstaTech (2 weeks)	United States	$3.08	25 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Otava, Ltd.	Ukraine	$460.00	250 mg	95%
Angene	China → Hong Kong	$4266.67	30 mg	97%

Chemical Identity

CAS826-62-0

PubChem CID13223

DTXSIDDTXSID0047456

FormulaC9H8O3

Mol. Weight164.16 g/mol

SMILESC1C2C=CC1C3C2C(=O)OC3=O

Data Sources

EPA CompTox (DSSTox) · DTXSID0047456Retrieved 2026-04-06
PubChem · compound 13223Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Plastics & Rubber

Brief citations

2-Norbornene-5,6-dicarboxylic anhydride (CAS 826-62-0) https://chemicalindependence.com/chemical/826-62-0/ EPA CompTox (DSSTox): DTXSID0047456. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0047456 PubChem: 13223. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/13223 EPA Chemical Data Reporting: 826-62-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 826-62-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291720 for CAS 826-62-0. Reporting year: 2024. https://usatrade.census.gov/