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Hexadecanoic acid, 1-methylethyl ester

Drug ingredient

CAS 142-91-6

EPA’s 2023 records show zero U.S. production for this drug ingredient.

Molecular structure of 142-91-6
US productionZero
Import value, 2024$114M
Import volumeCBI
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. 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 Zero · Imports Confidential
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
ID 27%IndonesiaMY 25%MalaysiaSG 12%SingaporeIN 10%IndiaIT 6%Italy
Domestic parents -- activity not disclosed (1)
Ascent Industries
EPA-registered importers (7)
Ioi Acidchem Sdn Bhd · MY Malaysia
Acidchem (Usa)
Acme-Hardesty Co A Division Of Jacob Stern & Sons
Catalynt Solutions
Icof America
Show all 7
Mak Chemicals
Oleon Americas

Why It Matters

Sectors
HealthMetals & MiningConsumer ProductsCore Chemicals
Downstream Uses

Appears in 5 drug and cosmetic product listings (FDA).

  • •Chemstat
  • •Chemtox
  • •Hepatatox
  • •Lipotox
  • •Homeoplex D
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • •Lubricating agent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Binder in All Other Basic Organic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAA BLOCKS
CountryUnited States
Pack$12.00 / 500 g
Purity98%
Vendors13 available

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

12 more vendors
VendorCountry$/gPackPurity
BLD Pharmatech Co., LimitedUnited States$0.041 kg97%
BLD Pharmatech GmbHGermany$0.041 kg97%
BLD Pharmatech Ltd.China$0.041 kg97%
Ambeed, Inc.United States$0.041 kg97%
A2B Chem LLCUnited States$0.04500 g98%
ChemsceneUnited States$0.051 kg—
Fluorochem EUGermany$0.07500 g98%
Sigma-Aldrich (Rush Stock)Germany$0.089 kg90%
Sigma-AldrichGermany$0.089 kg90%
MedChemExpress MCESweden$0.111 kg99.23%
Combi-Blocks, Inc.United States$0.40100 g98%
MedKoo Biosciences, IncUnited States$10.0025 g98%

Chemical Identity

CAS142-91-6
PubChem CID8907
DTXSIDDTXSID9027104
FormulaC19H38O2
Mol. Weight298.5 g/mol
SMILESCCCCCCCCCCCCCCCC(=O)OC(C)C

Data Sources

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Brief citations

Hexadecanoic acid, 1-methylethyl ester (CAS 142-91-6) https://chemicalindependence.com/chemical/142-91-6/ EPA CompTox (DSSTox): DTXSID9027104. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9027104 PubChem: 8907. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8907 EPA Chemical Data Reporting: 142-91-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 142-91-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291570 for CAS 142-91-6. Reporting year: 2024. https://usatrade.census.gov/