9-Octadecenoic acid (9Z)-, decyl ester

Drug ingredient

CAS 3687-46-5

This drug ingredient has classified U.S. production volumes. EPA withholds the number 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$10M

Import volumeZero

Top sourceIndia 25%

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 291615 · basket

EPA reports by year

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

These shares come from HS customs code 291615, which covers 71 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).

IN 25%IndiaIT 19%ItalyID 15%IndonesiaDE 8%GermanyCN 8%China

Canada
Belgium
Sweden
Netherlands
Israel
Spain

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.

Custom Synthesis

Why It Matters

Sectors

HealthConsumer Products

Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

•Anubismed
•Anubis Barcelona

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

•Lubricating agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$493.00/gAA BLOCKS

CountryUnited States

Pack$493.00 / 1 g

Purity95%

Vendors8 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

7 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$493.00	1 g	95%
Aaron Chemicals LLC	Hong Kong	$524.00	1 g	95%
Angene Chemical	China → Hong Kong	$528.00	1 g	95%
Angene International Limited	United States	$672.00	1 g	95%
Combi-Blocks (back-ordered)	United States	$780.00	1 g	95%
AstaTech (2 weeks)	United States	$859.00	1 g	95%
MedKoo Biosciences, Inc	United States	$3400.00	250 mg	98%

Chemical Identity

CAS3687-46-5

PubChem CID5363234

DTXSIDDTXSID1029259

FormulaC28H54O2

Mol. Weight422.7 g/mol

SMILESCCCCCCCCCCOC(=O)CCCCCCCC=CCCCCCCCC

Data Sources

EPA CompTox (DSSTox) · DTXSID1029259Retrieved 2026-04-06
PubChem · compound 5363234Retrieved 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

9-Octadecenoic acid (9Z)-, decyl ester (CAS 3687-46-5) https://chemicalindependence.com/chemical/3687-46-5/ EPA CompTox (DSSTox): DTXSID1029259. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1029259 PubChem: 5363234. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/5363234 EPA Chemical Data Reporting: 3687-46-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3687-46-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291615 for CAS 3687-46-5. Reporting year: 2024. https://usatrade.census.gov/