Dibutyl maleate

CAS 105-76-0

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$139M

Top sourceChina 67%

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 291719 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports 414.7K lb

These shares come from HS customs code 291719, which covers 176 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 67%ChinaCA 13%CanadaAT 4%AustriaIN 4%IndiaJP 4%Japan

Taiwan
Netherlands
Switzerland
Mexico
South Africa
Denmark
Malaysia
Ukraine
Colombia
Hong Kong
Slovakia

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

EPA-registered importers (2)

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

Industrial Chemicals

Van Horn, Metz &

Why It Matters

Sectors

Plastics & 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 2 sectors as 1 functional role.

•Plasticizer in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Plasticizer in Paint and Coating ManufacturingProcessing as a reactant

Vendor Pricing

$0.02/gAaron Chemicals LLC

CountryHong Kong

Pack$9.00 / 500 g

Purity98%

Vendors3 available

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

2 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.04	500 g	95%
TargetMol Chemicals	China → United States	$29.00	1 g	97.08%

Chemical Identity

CAS105-76-0

PubChem CID5271569

DTXSIDDTXSID3026724

FormulaC12H20O4

Mol. Weight228.28 g/mol

SMILESCCCCOC(=O)C=CC(=O)OCCCC

Data Sources

EPA CompTox (DSSTox) · DTXSID3026724Retrieved 2026-04-06
PubChem · compound 5271569Retrieved 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

Dibutyl maleate (CAS 105-76-0) https://chemicalindependence.com/chemical/105-76-0/ EPA CompTox (DSSTox): DTXSID3026724. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3026724 PubChem: 5271569. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/5271569 EPA Chemical Data Reporting: 105-76-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 105-76-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291719 for CAS 105-76-0. Reporting year: 2024. https://usatrade.census.gov/