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Pyrrolidine

CAS 123-75-1

EPA’s 2023 records show zero U.S. production of this chemical.

Molecular structure of 123-75-1
US productionZero
Import value, 2024$1.4B
Import volumeCBI
Top sourceIreland 33%

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. 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 293399 · basket

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

These shares come from HS customs code 293399, which covers 518 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy
EPA-registered importers (2)
Basf Se · DE Germany
Basf

Why It Matters

Sectors
Core Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS123-75-1
PubChem CID31268
DTXSIDDTXSID3059559
FormulaC4H9N
Mol. Weight71.12 g/mol
SMILESC1CCNC1

Data Sources

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Brief citations

Pyrrolidine (CAS 123-75-1) https://chemicalindependence.com/chemical/123-75-1/ EPA CompTox (DSSTox): DTXSID3059559. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3059559 PubChem: 31268. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/31268 EPA Chemical Data Reporting: 123-75-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 123-75-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293399 for CAS 123-75-1. Reporting year: 2024. https://usatrade.census.gov/