Residues, butadiene recovery solvent regeneration

CAS 68333-21-1

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.

Top sourceNo public record

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.

Where It Comes From

EPA reports by year

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

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.

Tpc Group

Why It Matters

Sectors

Consumer Products

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 in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS68333-21-1

PubChem CIDNot recorded

DTXSIDDTXSID0097794

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID0097794Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

Residues, butadiene recovery solvent regeneration (CAS 68333-21-1) https://chemicalindependence.com/chemical/68333-21-1/ EPA CompTox (DSSTox): DTXSID0097794. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0097794 EPA Chemical Data Reporting: 68333-21-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 68333-21-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting