HDI Biuret Trimer (Desmodur N 100)
HDI Biuret trimer is a polyisocyanate derived from 1,6-hexamethylene diisocyanate, containing residual monomeric HDI below 0.25%. It is an isocyanate compound, and the presence of residual monomer does not alter its classification as a chemically defined compound. It is classified under tariff item 2929.10.00.
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 |
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 trimer is not a separate chemically defined compound
Polyisocyanates that are not separate chemically defined compounds may fall under other nitrogen-function compounds.
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
• Ensure the residual monomer content is below the threshold that would affect classification
• Provide a technical data sheet showing the composition to CBSA
• Check if the product is subject to CEPA regulations for isocyanates
Related Products under Tariff item 2929.10.00
1,5-Naphthalene Diisocyanate
1,5-Naphthalene diisocyanate (CAS 3173-72-6), a polycyclic aromatic diisocyanate used in high-performance polyurethane elastomers and coatings requiring thermal stability. It is a chemically defined isocyanate compound, classifiable under tariff item 2929.10.00.
1,5-Naphthalene Diisocyanate Technical Grade
Technical grade 1,5-naphthalene diisocyanate at 95% purity, used in industrial polyurethane resin manufacturing. Despite minor impurities, it remains a separate chemically defined compound under Chapter note 1(a), classifiable under tariff item 2929.10.00.
1,6-Hexamethylene Diisocyanate (HDI)
1,6-Hexamethylene diisocyanate (HDI) is a chemically defined aliphatic diisocyanate with the formula OCNC6H12NCO, used as a reactive intermediate in polyurethane production. It is a separate chemically defined organic compound under Chapter Note 1(a) and is classified under tariff item 2929.10.00 as an isocyanate.
1-Isocyanato-3-(Trifluoromethyl)benzene
1-Isocyanato-3-(trifluoromethyl)benzene (CAS 329-98-6), also known as m-trifluoromethylphenyl isocyanate, an aromatic isocyanate used in fluorinated polymer synthesis and medicinal chemistry. It is a chemically defined isocyanate, classifiable under tariff item 2929.10.00.
3,4-Dichlorophenylisocyanate
3,4-Dichlorophenylisocyanate, a chemically defined organic compound with an isocyanate functional group attached to a 3,4-dichlorophenyl ring. It is classifiable under tariff item 2929.10.00 as an isocyanate, used as a building block in pharmaceutical and agrochemical synthesis.
3,4-Dichlorophenylisocyanate 98% Technical Grade
3,4-Dichlorophenylisocyanate at 98% technical grade purity, containing minor impurities but remaining a separate chemically defined compound under Chapter note 1(a). It is classifiable under tariff item 2929.10.00 as an isocyanate, used as a key building block in chemical synthesis.