Tetrahydro-2H-pyran-2-one

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

Molecular structure of 542-28-9
US ProductionCBI
Import Value$286M
Top SourceChina 48%

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 293220 · basket

These shares come from HS customs code 293220, which covers 33 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
CN 48%ChinaIN 15%IndiaJP 7%JapanGB 7%United KingdomCH 7%Switzerland
EPA-registered importers (2)
Basf Se · DE Germany
Basf

Why It Matters

Sectors
Paints & CoatingsCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
  • Dispersing agent in Paint and Coating Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.03/gAaron Chemicals LLC
CountryHong Kong
Pack$28.00 / 1 kg
Purity98%
Vendors19 available

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

18 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina Hong Kong$0.03500 g98%
AA BLOCKSUnited States$0.051 kg95%
Ambeed, Inc.United States$0.061 kg98%
Fluorochem EUGermany$0.061 kg98%
Apollo Scientific USUnited Kingdom$0.071 kg99%
A2B Chem LLCUnited States$0.09500 g98%
Fluorochem UKUnited Kingdom$0.11100 g98%
Combi-Blocks, Inc.United States$0.251 kg98%
AK Scientific, Inc.United States$0.30500 g98%
MedChemExpress MCESweden$0.45500 g99.98%
AstaTech, IncUnited States$0.49100 g95%
Angene International LimitedUnited States$0.53500 g98%
ALFA AESARGermany$1.05500 g98%
Labotest KGGermany$217.805000 mg90%
MolnovaChina$370.00100 mg99%
Otava, Ltd.Ukraine$2280.0050 mg95%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg95%
AngeneChina Hong Kong$4266.6730 mg98%

Chemical Identity

CAS542-28-9
PubChem CID10953
DTXSIDDTXSID6044438
FormulaC5H8O2
Mol. Weight100.12 g/mol
SMILESC1CCOC(=O)C1

Data Sources

DTXSID60444382026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

109532026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/10953/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/10953.json

542-28-92026-04-24

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

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

CAS 542-28-92026-04-25

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

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