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Methylenebutanedioic acid

CAS 97-65-4

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

Molecular structure of 97-65-4
US productionCBI
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 Confidential

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
Domestic parents -- activity not disclosed (1)
Basf
EPA-registered importers (6)
Toray Industries · JP Japan
Capital Resin
Dow Chemical
Starchem Usa
Toray Composite Materials America
Show all 6
Wego Chemical Group

Why It Matters

Sectors
AgricultureConstructionPlastics & RubberPaints & CoatingsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 3 functional roles.

  • •Surface modifier in Paint and Coating Manufacturing (100%)Processing as a reactant
  • •Intermediate in Petrochemical Manufacturing (100%)Processing as a reactant
  • •Monomers in Adhesive Manufacturing (100%)Processing as a reactant
  • •Monomers in Paint and Coating Manufacturing (50%)Processing as a reactant
  • •Monomers in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Monomers in Plastics Product Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$10.00 / 500 g
Purity99%
Vendors32 available

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

31 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.02500 g99%
A2B Chem LLCUnited States$0.031 kg99%
AA BLOCKSUnited States$0.0310 kg99%
BLD Pharmatech Co., LimitedUnited States$0.031 kg99%
Ambeed, Inc.United States$0.031 kg99%
BLD Pharmatech GmbHGermany$0.041 kg99%
BLD Pharmatech Ltd.China$0.041 kg99%
ALFA AESARGermany$0.045 kg99%
Sigma-Aldrich (Rush Stock)Germany$0.071 kg99%
Sigma-AldrichGermany$0.071 kg99%
AK Scientific SpecializedUnited States$0.08500 g95%
AK Scientific, Inc.United States$0.11500 g98%
Angene International LimitedUnited States$0.24500 g98%
Combi-Blocks, Inc.United States$0.251 kg98%
Fluorochem UKUnited Kingdom$0.56100 g99%
InterbioscreenHong Kong$10.0010 g95%
MolnovaChina$132.001 g99%
TargetMol ChemicalsChina → United States$147.001 g99.99%
ChemNormChina$150.00100 mg98%
Apexbio Technology LLCUnited States$200.00500 mg99.68%
TargetMol Chemicals EUAustria$210.00500 mg99.99%
Labotest KGGermany$217.805000 mg90%
MedChemExpress MCESweden$822.80100 mg99.98%
AstaTech (2 weeks)United States$990.00100 mg95%
ChemFacesChina$1500.0020 mg98%
Otava, Ltd.Ukraine$2280.0050 mg90%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg90%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg99%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS97-65-4
PubChem CID811
DTXSIDDTXSID2026608
FormulaC5H6O4
Mol. Weight130.1 g/mol
SMILESC=C(CC(=O)O)C(=O)O

Data Sources

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Brief citations

Methylenebutanedioic acid (CAS 97-65-4) https://chemicalindependence.com/chemical/97-65-4/ EPA CompTox (DSSTox): DTXSID2026608. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2026608 PubChem: 811. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/811 EPA Chemical Data Reporting: 97-65-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 97-65-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291719 for CAS 97-65-4. Reporting year: 2024. https://usatrade.census.gov/