1H-Imidazole-1-ethanol, 4,5-dihydro-2-undecyl-

CAS 136-99-2

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

Top sourceChina 26%

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 293329 · basket

EPA reports by year

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

These shares come from HS customs code 293329, which covers 173 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 26%ChinaIN 17%IndiaKR 16%South KoreaDE 9%GermanyIT 9%Italy

Australia
Brazil
Czech Republic
Ireland
Sweden
Ukraine
Poland
United Arab Emirates
Hungary
Israel
Netherlands
Canada
Saudi Arabia
Greece
Belgium
Austria
Latvia
Singapore
Denmark

EPA-registered manufacturers (4)

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

Syensqo Sa · BE Belgium

Croda

Solvay

Verdant Specialty Solutions

Why It Matters

Sectors

Consumer 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 2 sectors as 1 functional role.

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Intermediate in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing as a reactant

Vendor Pricing

$1.67/gAaron Chemicals LLC

CountryHong Kong

Pack$167.00 / 100 g

PurityNot recorded

Vendors2 available

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

1 more vendor

Vendor	Country	$/g	Pack	Purity
Maybridge, Ltd.	United Kingdom	$2414.30	100 mg	90%

Chemical Identity

CAS136-99-2

PubChem CID8709

DTXSIDDTXSID0059667

FormulaC16H32N2O

Mol. Weight268.44 g/mol

SMILESCCCCCCCCCCCC1=NCCN1CCO

Data Sources

EPA CompTox (DSSTox) · DTXSID0059667Retrieved 2026-04-06
PubChem · compound 8709Retrieved 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

1H-Imidazole-1-ethanol, 4,5-dihydro-2-undecyl- (CAS 136-99-2) https://chemicalindependence.com/chemical/136-99-2/ EPA CompTox (DSSTox): DTXSID0059667. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0059667 PubChem: 8709. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8709 EPA Chemical Data Reporting: 136-99-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 136-99-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293329 for CAS 136-99-2. Reporting year: 2024. https://usatrade.census.gov/