Isobutylene
Isobutylene (2-methylpropene, C4H8) is a branched unsaturated hydrocarbon from petroleum refinery C4 streams. It is a separate, chemically defined compound, classified under tariff item 2901.29.00 as 'Other'. It is used in the production of butyl rubber and as a chemical intermediate.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| π¨π³China | Free | β | Free |
| π²π½Mexico | Free | β | Free |
| πΊπΈUnited States | Free | β | Free |
| π©πͺGermany | Free | β | Free |
| π―π΅Japan | Free | β | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is butene (butylene) and isomers thereof
Isobutylene is an isomer of butene; if the subheading covers all butene isomers, it may fall here.
If the product is ethylene
Ethylene is specifically named; isobutylene is a C4 olefin.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ Ensure the product is not mixed with other C4 hydrocarbons; if it is a mixture, it may be classified elsewhere
β’ Provide a purity certificate to CBSA
β’ Check if the product is subject to any import permits under the Canadian Environmental Protection Act
Related Products under Tariff item 2901.29.00
1,5-Hexadiene Petroleum Grade
1,5-Hexadiene is a nonconjugated diene (C6H10) with two double bonds, derived from petroleum ethylene processes. It is an unsaturated acyclic hydrocarbon, falling under tariff item 2901.29.00 as 'Other' acyclic hydrocarbons. It is used as a crosslinking agent in polymer production.
1-Decene
1-Decene is a C10 alpha-olefin produced via Ziegler process oligomerization from petroleum. As a separate, chemically defined unsaturated acyclic hydrocarbon, it is classified under tariff item 2901.29.00 as 'Other'. It is used in synthetic lubricants and as a comonomer in polymer production.
1-Decene (C10 Linear Ξ±-Olefin)
1-Decene is a linear alpha-olefin (C10H20) derived from natural gas liquids or petroleum. It is an unsaturated acyclic hydrocarbon, classified under tariff item 2901.29.00 as 'Other'. It is used in producing polyalphaolefins (PAO) for synthetic lubricants.
1-Dodecene
1-Dodecene (C12H24) is a long-chain linear alpha-olefin from petroleum oligomerization. It is a separate, chemically defined unsaturated acyclic hydrocarbon, classified under tariff item 2901.29.00 as 'Other'. It is used in synthetic lubricants, detergents, and as a polymer comonomer.
1-Dodecene (C12 Linear Ξ±-Olefin)
1-Dodecene is a C12 linear alpha-olefin (C12H24) derived from petroleum. It is an unsaturated acyclic hydrocarbon, classified under tariff item 2901.29.00 as 'Other'. It is essential for manufacturing linear alkylbenzene (LAB) used in detergents.
1-Hexadecene (C16 Linear Ξ±-Olefin)
1-Hexadecene is a C16 linear terminal olefin (C16H32) derived from petroleum. It is an unsaturated acyclic hydrocarbon, classified under tariff item 2901.29.00 as 'Other'. It is used in producing high-viscosity PAO base stocks.