Octadecanoic acid, tridecyl ester

CAS 31556-45-3

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$114M

Import volumeZero

Top sourceIndonesia 27%

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 291570 · basket

EPA reports by year

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

These shares come from HS customs code 291570, which covers 96 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).

ID 27%IndonesiaMY 25%MalaysiaSG 12%SingaporeIN 10%IndiaIT 6%Italy

United Kingdom
Colombia
Argentina
Vietnam
Peru
Brazil
Sweden
Denmark
Switzerland

EPA-registered manufacturers (3)

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

Chemol

Custom Synthesis

Dover Chemical

Domestic parents -- activity not disclosed (3)

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

Ascent Chemicals

Polyventive

Teknor Apex- Haywood

Why It Matters

Sectors

Energy

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.

•Lubricating agent in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in Not Known or Reasonably Ascertainable (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS31556-45-3

PubChem CID35847

DTXSIDDTXSID2027967

FormulaC31H62O2

Mol. Weight466.8 g/mol

SMILESCCCCCCCCCCCCCCCCCC(=O)OCCCCCCCCCCCCC

Data Sources

EPA CompTox (DSSTox) · DTXSID2027967Retrieved 2026-04-06
PubChem · compound 35847Retrieved 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

Octadecanoic acid, tridecyl ester (CAS 31556-45-3) https://chemicalindependence.com/chemical/31556-45-3/ EPA CompTox (DSSTox): DTXSID2027967. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2027967 PubChem: 35847. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/35847 EPA Chemical Data Reporting: 31556-45-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 31556-45-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291570 for CAS 31556-45-3. Reporting year: 2024. https://usatrade.census.gov/