Tetrahydrophthalic anhydride

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

Molecular structure of 85-43-8
US ProductionCBI
Import Value$37M
Top SourceChina 25%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 291720 · basket

These shares come from HS customs code 291720, which covers 15 chemicals in total. They estimate the bucket'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 (3)
Huntsman
Polynt Composites Usa
Reichhold Llc 2

Why It Matters

Sectors
WaterPlastics & Rubber
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • Intermediate in Utilities (100%)Processing—incorporation into article
  • Intermediate in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.31/gAstaTech, Inc
CountryUnited States
Pack$157.00 / 500 g
Purity98%
Vendors9 available

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

8 more vendors
VendorCountry$/gPackPurity
ChemsceneUnited States$0.31500 g
AK Scientific, Inc.United States$0.57100 g98%
Combi-Blocks, Inc.United States$0.76500 g98%
Fluorochem EUGermany$7.261 g95%
InterbioscreenHong Kong$10.0010 g95%
SpecsNetherlands$132.1310 g90%
Labotest KGGermany$217.805000 mg90%
Otava, Ltd.Ukraine$460.00250 mg95%

Chemical Identity

CAS85-43-8
PubChem CID6810
DTXSIDDTXSID3026516
FormulaC8H8O3
Mol. Weight152.15 g/mol
SMILESC1C=CCC2C1C(=O)OC2=O

Data Sources

DTXSID30265162026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

68102026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/6810/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/6810.json

85-43-82026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 85-43-82026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv