2-Pyrrolidinone

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

Molecular structure of 616-45-5
US ProductionCBI
Import Value$907M
Top SourceIreland 47%

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 293379 · basket

These shares come from HS customs code 293379, which covers 17 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
IE 47%IrelandBE 19%BelgiumSG 11%SingaporeIT 4%ItalyCH 4%Switzerland
EPA-registered manufacturers (3)
Basf Se · DE Germany
Ashland
Basf
EPA-registered importers (1)
Hp

Why It Matters

Sectors
Metals & MiningConsumer ProductsPaper & PrintingCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 4 functional roles.

  • Intermediate in All Other Basic Organic Chemical Manufacturing (93%)Processing as a reactant
  • Surface active agents in Printing Ink Manufacturing (7%)Processing—incorporation into formulation, mixture, or reaction product
  • Solvents (which become part of product formulation or mixture) in Mining (except Oil and Gas) and support activitiesProcessing—incorporation into formulation, mixture, or reaction product
  • Solvent in Wholesale and Retail TradeProcessing—incorporation into article
  • Solvent in Printing Ink Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • Solvent in Other (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAA BLOCKS
CountryUnited States
Pack$2303.00 / 100 kg
Purity98%
Vendors16 available

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

15 more vendors
VendorCountry$/gPackPurity
A2B Chem LLCUnited States$0.0325 kg98%
Sigma-Aldrich (Rush Stock)Germany$0.0718 kg99%
Sigma-AldrichGermany$0.0718 kg99%
ALFA AESARGermany$0.072 kg99%
AK Scientific SpecializedUnited States$0.10500 g98%
AK Scientific, Inc.United States$0.13500 g99.5%
AstaTech, IncUnited States$0.23250 g95%
Combi-Blocks, Inc.United States$0.251 kg98%
Apollo Scientific UKUnited Kingdom$2.4025 g95%
InterbioscreenHong Kong$10.0010 g95%
Labotest KGGermany$217.805000 mg90%
Otava, Ltd.Ukraine$2280.0050 mg95%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg90%
ChemDiv, Inc.United States$4070.00100 mg90%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS616-45-5
PubChem CID12025
DTXSIDDTXSID8027246
FormulaC4H7NO
Mol. Weight85.1 g/mol
SMILESC1CC(=O)NC1

Data Sources

DTXSID80272462026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

120252026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/12025/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/12025.json

616-45-52026-04-24

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

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

CAS 616-45-52026-04-25

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

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