4,4'-Dithiodimorpholine
CAS 103-34-4
EPA’s 2023 records show zero U.S. production of this chemical.
At least one company claimed its 2023 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. 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
- 2023
- US production Zero · 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.
- 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
Show all 6
Why It Matters
Industrial Uses
- •Polymerization promoter in Rubber Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
18 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 |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $0.04 | 500 g | 98% |
| Chemscene | United States | $0.06 | 1 kg | — |
| A2B Chem LLC | United States | $0.06 | 500 g | 95% |
| AA BLOCKS | United States | $0.07 | 500 g | 95% |
| Fluorochem EU | Germany | $0.07 | 500 g | 95% |
| BLD Pharmatech GmbH | Germany | $0.07 | 1 kg | 98% |
| BLD Pharmatech Ltd. | China | $0.07 | 1 kg | 98% |
| Ambeed, Inc. | United States | $0.11 | 1 kg | 98% |
| BLD Pharmatech Co., Limited | United States | $0.13 | 500 g | 98% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| AK Scientific Specialized | United States | $2.40 | 5 g | 95% |
| AK Scientific, Inc. | United States | $4.00 | 5 g | 95% |
| AstaTech (2 weeks) | United States | $4.00 | 10 g | 95% |
| Angene International Limited | United States | $13.40 | 5 g | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| Interbioscreen | Hong Kong | $4864.50 | 100 mg | 92% |
| Princeton BioMolecular Research (SC) | United States | $5000.00 | 30 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $5133.33 | 30 mg | 90% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID8026698Retrieved 2026-04-06
- PubChem · compound 7648Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
4,4'-Dithiodimorpholine (CAS 103-34-4) https://chemicalindependence.com/chemical/103-34-4/ EPA CompTox (DSSTox): DTXSID8026698. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8026698 PubChem: 7648. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7648 EPA Chemical Data Reporting: 103-34-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 103-34-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293499 for CAS 103-34-4. Reporting year: 2024. https://usatrade.census.gov/