1-Methyltrimethylene dimethacrylate

CAS 1189-08-8

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$257M

Top sourceGermany 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 291614 · basket

EPA reports by year

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

These shares come from HS customs code 291614, which covers 98 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).

DE 26%GermanyKR 17%South KoreaJP 12%JapanCN 9%ChinaSG 9%Singapore

Italy
Netherlands
United Arab Emirates
Belgium
Canada
Turkey
Switzerland
Mexico
Hungary
Austria
Poland
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.

Arkema

EPA-registered importers (1)

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

Miwon North America

Why It Matters

Sectors

Metals & MiningPlastics & RubberPaints & Coatings

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 5 sectors as 3 functional roles.

•Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
•Monomers in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Monomers in Plastics Material and Resin ManufacturingProcessing as a reactant
•Monomers in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Monomers in Miscellaneous ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Photosensitive chemicals in Custom Compounding of Purchased Resins (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.25/gCombi-Blocks, Inc.

CountryUnited States

Pack$250.00 / 1 kg

Purity98%

Vendors5 available

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

4 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.27	1 kg	98%
AA BLOCKS	United States	$0.28	1 kg	98%
AK Scientific Specialized	United States	$0.35	100 g	95%
AK Scientific, Inc.	United States	$0.46	100 g	99%

Chemical Identity

CAS1189-08-8

PubChem CID70916

DTXSIDDTXSID5044784

FormulaC12H18O4

Mol. Weight226.27 g/mol

SMILESCC(CCOC(=O)C(=C)C)OC(=O)C(=C)C

Data Sources

EPA CompTox (DSSTox) · DTXSID5044784Retrieved 2026-04-06
PubChem · compound 70916Retrieved 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

1-Methyltrimethylene dimethacrylate (CAS 1189-08-8) https://chemicalindependence.com/chemical/1189-08-8/ EPA CompTox (DSSTox): DTXSID5044784. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5044784 PubChem: 70916. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/70916 EPA Chemical Data Reporting: 1189-08-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1189-08-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291614 for CAS 1189-08-8. Reporting year: 2024. https://usatrade.census.gov/