(2-(Methacryloyloxy)ethyl)trimethylammonium chloride

CAS 5039-78-1

U.S. production volumes are classified as confidential business information.

Molecular structure of 5039-78-1 — 1 Cl⁻

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$108M

Top sourceChina 14%

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 292390 · basket

EPA reports by year

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

These shares come from HS customs code 292390, which covers 130 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 14%ChinaGB 13%United KingdomDE 11%GermanyIN 10%IndiaTW 10%Taiwan

Israel
Indonesia
Sweden
Turkey
United Arab Emirates
Malaysia
Singapore
Lithuania
Brazil
Hong Kong
Australia
Belgium
Ukraine

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.

Snf Holding

Domestic parents -- activity not disclosed (2)

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

Nalco- An Ecolab

Veolia Wts Usa

Why It Matters

Sectors

Metals & MiningCore 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 2 functional roles.

•Monomers in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
•Thickening agent in OtherProcessing as a reactant

Vendor Pricing

$0.03/gAaron Chemicals LLC

CountryHong Kong

Pack$14.00 / 500 g

Purity80%

Vendors15 available

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

14 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.04	1 kg	80%
BLD Pharmatech Ltd.	China	$0.05	1 kg	80%
BLD Pharmatech Co., Limited	United States	$0.05	1 kg	80%
Ambeed, Inc.	United States	$0.05	1 kg	80%
AA BLOCKS	United States	$0.05	500 g	80%
BLD Pharmatech GmbH	Germany	$0.06	500 g	80%
A2B Chem LLC	United States	$0.07	500 g	80%
Fluorochem UK	United Kingdom	$0.07	500 g	95%
Synthonix	United States	$0.08	500 g	80%
AK Scientific, Inc.	United States	$0.13	500 g	80%
ALFA AESAR	Germany	$0.16	500 g	—
Angene International Limited	United States	$0.27	500 g	80%
MedChemExpress MCE	Sweden	$4.96	10 g	78%
Angene	China → Hong Kong	$4266.67	30 mg	80%

Chemical Identity

CAS5039-78-1

PubChem CID78738

DTXSIDDTXSID3027586

FormulaC9H18ClNO2

Mol. Weight207.7 g/mol

SMILESCC(=C)C(=O)OCC[N+](C)(C)C.[Cl-]

Data Sources

EPA CompTox (DSSTox) · DTXSID3027586Retrieved 2026-04-06
PubChem · compound 78738Retrieved 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

(2-(Methacryloyloxy)ethyl)trimethylammonium chloride (CAS 5039-78-1) https://chemicalindependence.com/chemical/5039-78-1/ EPA CompTox (DSSTox): DTXSID3027586. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3027586 PubChem: 78738. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/78738 EPA Chemical Data Reporting: 5039-78-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5039-78-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292390 for CAS 5039-78-1. Reporting year: 2024. https://usatrade.census.gov/