4-Heptadecylidene-3-hexadecyl-2-oxetanone

CAS 10126-68-8

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$286M

Import volume2.0M lb

Top sourceChina 48%

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 293220 · basket

EPA reports by year

2023: US production Confidential · Imports 2.0M lb
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 293220, which covers 151 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 48%ChinaIN 15%IndiaJP 7%JapanGB 7%United KingdomCH 7%Switzerland

Mexico
Austria
Indonesia
Czech Republic
Slovakia
Malaysia
Israel
Poland
Vietnam
Ukraine
South Africa
Singapore
Russia
Lithuania
Hungary
Belarus
Brazil
Australia

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.

Kemira Water Solutions

Why It Matters

Sectors

Paper & Printing

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 1 sector as 3 functional roles.

•Sizing agent in Paper Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Flotation agent in Paper Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Waterproofing agent in Paper Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS10126-68-8

PubChem CID6437725

DTXSIDDTXSID0029715

FormulaC36H68O2

Mol. Weight532.9 g/mol

SMILESCCCCCCCCCCCCCCCCC=C1C(C(=O)O1)CCCCCCCCCCCCCCCC

Data Sources

EPA CompTox (DSSTox) · DTXSID0029715Retrieved 2026-04-06
PubChem · compound 6437725Retrieved 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

4-Heptadecylidene-3-hexadecyl-2-oxetanone (CAS 10126-68-8) https://chemicalindependence.com/chemical/10126-68-8/ EPA CompTox (DSSTox): DTXSID0029715. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0029715 PubChem: 6437725. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6437725 EPA Chemical Data Reporting: 10126-68-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 10126-68-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293220 for CAS 10126-68-8. Reporting year: 2024. https://usatrade.census.gov/