2-Ethyl-4-(2',2',3-trimethylcyclopent-3'-enyl)but-2-enol

CAS 28219-61-6

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$118M

Top sourceGermany 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 290619 · basket

EPA reports by year

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

These shares come from HS customs code 290619, which covers 137 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).

DE 19%GermanyCH 17%SwitzerlandBR 17%BrazilIN 11%IndiaIT 10%Italy

Netherlands
Ukraine
Canada
United Kingdom
Malaysia
Australia
Indonesia
Czech Republic
Belgium

Domestic parents -- activity not disclosed (1)

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

Reckitt Benckiser

EPA-registered importers (7)

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

Reckitt Benckiser Group · GB United Kingdom

Symrise Ag · DE Germany

Givaudan Fragrances

Henkel Us Operations

International Flavors And Fragrances

Show all 7

P&G

Symrise

Why It Matters

Sectors

Plastics & RubberConsumer ProductsCore 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 4 sectors as 1 functional role.

•Fragrance in Plastics Material and Resin Manufacturing (1%)Processing—incorporation into article
•Fragrance in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
•Fragrance in All Other Chemical Product and Preparation Manufacturing (98%)Processing—incorporation into formulation, mixture, or reaction product
•Fragrance in Not Known or Reasonably AscertainableProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS28219-61-6

PubChem CIDNot recorded

DTXSIDDTXSID0044814

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID0044814Retrieved 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

2-Ethyl-4-(2',2',3-trimethylcyclopent-3'-enyl)but-2-enol (CAS 28219-61-6) https://chemicalindependence.com/chemical/28219-61-6/ EPA CompTox (DSSTox): DTXSID0044814. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0044814 EPA Chemical Data Reporting: 28219-61-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 28219-61-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290619 for CAS 28219-61-6. Reporting year: 2024. https://usatrade.census.gov/