4-Morpholineethanesulfonic acid
CAS 4432-31-9
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2019 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2019. 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
- 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.
- Finland
- Netherlands
- Canada
- Indonesia
- Mexico
- Taiwan
- South Korea
- Austria
- Croatia
- Sweden
- Ukraine
- Denmark
- Israel
- Czech Republic
- New Zealand
- Hong Kong
- Kyrgyzstan
- Australia
- Portugal
- South Africa
- Poland
- Slovenia
- Brazil
- Slovakia
- Vietnam
- Latvia
- Malta
- Hungary
- Romania
- Kenya
- Belarus
- Russia
- Turkey
- Norway
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
25 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Aaron Chemicals LLC | Hong Kong | $0.04 | 1 kg | 98% |
| Angene Chemical | China → Hong Kong | $0.05 | 500 g | 98% |
| AA BLOCKS | United States | $0.05 | 1 kg | 98% |
| Chemscene | United States | $0.06 | 1 kg | — |
| BLD Pharmatech Co., Limited | United States | $0.06 | 1 kg | 98% |
| BLD Pharmatech GmbH | Germany | $0.06 | 1 kg | 98% |
| BLD Pharmatech Ltd. | China | $0.06 | 1 kg | 98% |
| Ambeed, Inc. | United States | $0.06 | 1 kg | 98% |
| Fluorochem UK | United Kingdom | $0.08 | 1 kg | 97% |
| Fluorochem EU | Germany | $0.08 | 1 kg | 97% |
| AK Scientific Specialized | United States | $0.15 | 1 kg | 98% |
| Angene International Limited | United States | $0.16 | 500 g | 98% |
| Apollo Scientific US | United Kingdom | $0.17 | 1 kg | 99.5% |
| AK Scientific, Inc. | United States | $0.19 | 1 kg | 99% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| AstaTech, Inc | United States | $0.90 | 50 g | 95% |
| Sigma-Aldrich (Rush Stock) | Germany | $2.36 | 1 kg | 99% |
| Sigma-Aldrich | Germany | $2.36 | 1 kg | 99% |
| Interbioscreen | Hong Kong | $10.00 | 10 g | 95% |
| TargetMol Chemicals | China → United States | $17.50 | 2 g | 99.91% |
| MedChemExpress MCE | Sweden | $62.92 | 500 mg | 99.93% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| ChemDiv, Inc. | United States | $4070.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID4063454Retrieved 2026-04-06
- PubChem · compound 78165Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
4-Morpholineethanesulfonic acid (CAS 4432-31-9) https://chemicalindependence.com/chemical/4432-31-9/ EPA CompTox (DSSTox): DTXSID4063454. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4063454 PubChem: 78165. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/78165 EPA Chemical Data Reporting: 4432-31-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293499 for CAS 4432-31-9. Reporting year: 2024. https://usatrade.census.gov/