Methanediamine, N,N,N',N'-tetramethyl-
CAS 51-80-9
U.S. production volumes are classified as confidential business information.
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. 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 292129 · basket
- 2023
- US production Confidential · Imports Zero
These shares come from HS customs code 292129, which covers 69 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- United Arab Emirates
- Czech Republic
- Mexico
- Malaysia
- South Korea
- Turkey
- Norway
- Australia
- Ukraine
- Russia
- Spain
- Latvia
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.
11 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 | $0.16 | 500 g | 97% |
| A2B Chem LLC | United States | $0.52 | 500 g | 98% |
| AA BLOCKS | United States | $0.55 | 500 g | 98% |
| Combi-Blocks, Inc. | United States | $0.72 | 500 g | 98% |
| Ambeed, Inc. | United States | $1.48 | 100 g | 98% |
| ALFA AESAR | Germany | $1.62 | 100 g | 99% |
| Angene International Limited | United States | $1.97 | 500 g | — |
| Sigma-Aldrich (Rush Stock) | Germany | $2.26 | 100 g | 99% |
| Sigma-Aldrich | Germany | $2.26 | 100 g | 99% |
| Interbioscreen | Hong Kong | $34.00 | 10 g | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-04-29
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Methanediamine, N,N,N',N'-tetramethyl- (CAS 51-80-9) https://chemicalindependence.com/chemical/51-80-9/ EPA TSCA Inventory: CAS 51-80-9. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 51-80-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292129 for CAS 51-80-9. Reporting year: 2024. https://usatrade.census.gov/