Benzene, ethenyl-, distn. residues

CAS 68512-63-0

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

US productionCBI

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

Import value, 2024$324M

Top sourceCanada 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 270750 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production 11.8M lb · Imports Zero

These shares come from HS customs code 270750, which covers 23 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).

CA 19%CanadaTR 14%TurkeyKR 11%South KoreaNL 7%NetherlandsKW 7%Kuwait

China
India
Germany
Italy
Ireland

EPA-registered manufacturers (1)

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

Westlake

Why It Matters

Sectors

Core 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

•Fuel agents in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS68512-63-0

PubChem CIDNot recorded

DTXSIDDTXSID9028623

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID9028623Retrieved 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

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Brief citations

Benzene, ethenyl-, distn. residues (CAS 68512-63-0) https://chemicalindependence.com/chemical/68512-63-0/ EPA CompTox (DSSTox): DTXSID9028623. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9028623 EPA Chemical Data Reporting: 68512-63-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 68512-63-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 270750 for CAS 68512-63-0. Reporting year: 2024. https://usatrade.census.gov/