4-Methylmorpholine

CAS 109-02-4

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

Molecular structure of 109-02-4
US productionCBI
Import value, 2024$6.4B
Top sourceSingapore 36%

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 293499 · basket

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

These shares come from HS customs code 293499, which covers 575 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India
EPA-registered manufacturers (4)
Basf Se · DE Germany
Basf
Huntsman
Veolia Wts Usa

Why It Matters

Sectors
EnergyPlastics & RubberCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

  • •Corrosion inhibitor in Petroleum Refineries (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
  • •Catalyst in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.11/gA2B Chem LLC (2 weeks)
CountryUnited States
Pack$11173.00 / 100 kg
Purity98%
Vendors8 available

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

Chemical Identity

CAS109-02-4
PubChem CID7972
DTXSIDDTXSID9029146
FormulaC5H11NO
Mol. Weight101.15 g/mol
SMILESCN1CCOCC1

Data Sources

Brief citations

4-Methylmorpholine (CAS 109-02-4) https://chemicalindependence.com/chemical/109-02-4/ EPA CompTox (DSSTox): DTXSID9029146. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9029146 PubChem: 7972. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7972 EPA Chemical Data Reporting: 109-02-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 109-02-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293499 for CAS 109-02-4. Reporting year: 2024. https://usatrade.census.gov/