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Hexahydro-4-methylphthalic anhydride

CAS 19438-60-9

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

Molecular structure of 19438-60-9
US productionCBI
Import value, 2024$37M
Top sourceChina 25%

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 291720 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 291720, which covers 42 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 25%ChinaIT 21%ItalyJP 21%JapanDE 14%GermanyIN 9%India
EPA-registered manufacturers (1)
Lindau Chemicals
EPA-registered importers (4)
Kyocera · JP Japan
Huntsman
Kyocera International
Westlake

Why It Matters

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

Industrial Uses

Used in 4 sectors as 5 functional roles.

  • •Hardener in Plastics Material and Resin Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
  • •Chelating agent in Plastics Material and Resin Manufacturing (5%)Processing—incorporation into formulation, mixture, or reaction product
  • •pH regulating agent in Plastics Material and Resin Manufacturing (5%)Processing—incorporation into formulation, mixture, or reaction product
  • •Dispersing agent in Electrical Equipment, Appliance, and Component ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Hardener in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Utilities (100%)Processing—incorporation into article

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$12.00 / 500 g
Purity98%
Vendors15 available

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

14 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.03500 g98%
A2B Chem LLCUnited States$0.06500 g98%
AA BLOCKSUnited States$0.08500 g98%
AK Scientific SpecializedUnited States$0.16500 g95%
MedChemExpress MCESweden$0.18500 g—
AK Scientific, Inc.United States$0.21500 g98%
Combi-Blocks, Inc.United States$0.251 kg98%
Sigma-Aldrich (Rush Stock)Germany$0.293 kg96%
Sigma-AldrichGermany$0.293 kg96%
Angene International LimitedUnited States$0.54500 g95%
AstaTech (2 weeks)United States$0.99100 g95%
Labotest KGGermany$453.001000 mg90%
Otava, Ltd.Ukraine$460.00250 mg95%
AngeneChina → Hong Kong$4266.6730 mg98%

Chemical Identity

CAS19438-60-9
PubChem CID86876
DTXSIDDTXSID8044333
FormulaC9H12O3
Mol. Weight168.19 g/mol
SMILESCC1CCC2C(C1)C(=O)OC2=O

Data Sources

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Brief citations

Hexahydro-4-methylphthalic anhydride (CAS 19438-60-9) https://chemicalindependence.com/chemical/19438-60-9/ EPA CompTox (DSSTox): DTXSID8044333. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8044333 PubChem: 86876. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/86876 EPA Chemical Data Reporting: 19438-60-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 19438-60-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291720 for CAS 19438-60-9. Reporting year: 2024. https://usatrade.census.gov/