Styrene Oxide
Styrene oxide contains a three-membered epoxide ring attached to a benzene ring, used as an intermediate in pharmaceutical synthesis and polymer modifiers. It is classified under tariff item 2910.90.00 as an 'other' epoxy compound with a three-membered ring. The product is a separate chemically defined organic compound, meeting Chapter 29 requirements.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is oxirane (ethylene oxide)
This product is not oxirane, so this alternative does not apply.
If the product is methyloxirane (propylene oxide)
This product is not methyloxirane, so this alternative does not apply.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify that the product is not a polymer; if it is polymerized, it may fall under Chapter 39
• Ensure the product is pure and not mixed with other compounds, unless it is a mixture of isomers
• Provide the chemical structure and CAS number to the CBSA for accurate classification
Related Products under Tariff item 2910.90.00
1,2-Epoxy-2-Methylpropane
1,2-Epoxy-2-methylpropane is a butylene oxide isomer with a three-membered epoxide ring, making it a separate chemically defined organic compound under heading 29.10. It is used as an alkylating agent in fine chemical synthesis and as an intermediate in producing various derivatives.
1,2-Epoxy-3-Phenoxypropane
1,2-Epoxy-3-phenoxypropane, also known as phenyl glycidyl ether, is an epoxyether with a three-membered epoxide ring and an aromatic phenoxy group. It is used as a reactive diluent and modifier in epoxy resin systems.
1,2-Epoxy-3-phenoxypropane
1,2-Epoxy-3-phenoxypropane is an epoxy ether with a three-membered epoxide ring and a phenoxy group, used in specialty coatings and adhesive formulations. It is classified under tariff item 2910.90.00 as an 'other' epoxide with a three-membered ring, as it is not specifically named in other subheadings of heading 29.10. The compound is a separate chemically defined organic compound, meeting Chapter 29 requirements.
2-Ethylhexyl Glycidyl Ether
2-Ethylhexyl glycidyl ether is a branched chain epoxyether with a three-membered ring, used as a low-viscosity reactive diluent in epoxy composites. It is a separate chemically defined organic compound under heading 29.10.
2-Methyloxirane (Isobutylene Oxide)
2-Methyloxirane, also called isobutylene oxide, is a branched epoxide with a three-membered ring, classified as a separate chemically defined organic compound. It serves as a key intermediate in manufacturing glycols, polymers, and other industrial chemicals.
4-Vinylcyclohexene Dioxide
4-Vinylcyclohexene dioxide is a diepoxide with two three-membered epoxide rings, classified as a separate chemically defined compound. It is used in advanced composites and high-temperature adhesives for automotive and aerospace applications.