Flag of the United StatesAmerican Chemical Independence

Butyl fumarate

CAS 105-75-9

2-Butenedioic acid (2E)-, 1,4-dibutyl ester

Companies reported imports and no US production of this chemical to EPA for 2023.

Molecular structure of 105-75-9
US productionZero
Import value, 2024$139M
Import volume62.6K lb
Import dependency100%
Top sourceChina 67%

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.

Butyl fumarate · US import value by year
$117M2013$187M2022$139M2024$118M2025

2013: $117M · Peak 2022: $187M · 2024: $139M · 2025: $118M

Where It Comes From

Customs basis: HS 291719 · basket

EPA reports by year
2023
US production Zero · Imports 62.6K 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
CN 67%ChinaCA 13%CanadaAT 4%AustriaIN 4%IndiaJP 4%Japan
EPA-registered importers (1)
Ineos Styrolution America

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Plasticizer in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

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
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.04500 g95%
TargetMol ChemicalsChina → United States$29.001 g97.08%

Chemical Identity

CAS105-75-9
PubChem CIDNot recorded
DTXSIDDTXSID7021865
FormulaC12H20O4
Mol. Weight228.288 g/mol
SMILESCCCCOC(=O)\C=C\C(=O)OCCCC

Data Sources

← Back to Dashboard← Back to Plastics & Rubber

Brief citations

Butyl fumarate (CAS 105-75-9) https://chemicalindependence.com/chemical/105-75-9/ EPA TSCA Inventory: CAS 105-75-9. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 105-75-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 105-75-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291719 for CAS 105-75-9. Reporting year: 2024. https://usatrade.census.gov/