2-Butene, 1-bromo-3-methyl-
CAS 870-63-3
This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.
Why supply is unknownProduction is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 290369 · basket
These shares come from HS customs code 290369, which covers 96 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Singapore
- Germany
- Hungary
- Ukraine
- Switzerland
- Mexico
- Hong Kong
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.
21 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 | $0.25 | 500 g | 90% |
| A2B Chem LLC | United States | $0.50 | 250 g | 90% |
| AA BLOCKS | United States | $0.64 | 250 g | 90% |
| Fluorochem UK | United Kingdom | $0.71 | 100 g | 90% |
| Fluorochem EU | Germany | $0.97 | 25 g | 90% |
| Manchester Organics | United Kingdom | $1.27 | 250 g | 95% |
| AstaTech, Inc | United States | $2.63 | 100 g | 95% |
| Combi-Blocks, Inc. | United States | $2.80 | 100 g | 96% |
| Key Organics Ltd. | United Kingdom | $4.04 | 25 g | 90% |
| ALFA AESAR | Germany | $4.34 | 250 g | 90% |
| Sigma-Aldrich (Rush Stock) | Germany | $4.44 | 25 g | 90% |
| Sigma-Aldrich | Germany | $4.44 | 25 g | 90% |
| AK Scientific Specialized | United States | $5.08 | 25 g | 90% |
| Angene International Limited | United States | $9.24 | 25 g | 90% |
| Interbioscreen | Hong Kong | $24.00 | 10 g | 95% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 90% |
| Asinex | Netherlands | $6461.40 | 100 mg | 90% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
2-Butene, 1-bromo-3-methyl- (CAS 870-63-3) https://chemicalindependence.com/chemical/870-63-3/ EPA TSCA Inventory: CAS 870-63-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290369 for CAS 870-63-3. Reporting year: 2024. https://usatrade.census.gov/