N-Phenylmaleimide
N-Phenylmaleimide is an organic compound featuring a maleimide ring with a phenyl group attached to the nitrogen atom, used as a monomer or crosslinking agent in high-performance polymer synthesis. As a substituted imide derivative, it falls under the 'Other' tariff item for imides and their derivatives, which covers compounds not more specifically described elsewhere in the chapter.
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 saccharin or its salts
Saccharin and its salts are specifically named in the subheading, while N-Phenylmaleimide is not.
If the product were an imine-function compound rather than an imide
Imines (Schiff bases) are classified separately from imides under the same heading.
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 product is a separate chemically defined organic compound with no added substances that could shift classification
• Keep a technical datasheet or certificate of analysis to confirm the chemical identity for CBSA officers
• Verify whether the shipment qualifies for any preferential tariff treatment under Canada's free trade agreements, as MFN duty rates may not apply
Related Products under Tariff item 2925.19.00
1,8-Naphthalimide
1,8-Naphthalimide is a fused-ring aromatic imide used in fluorescent dyes and optical brighteners. Its polycyclic aromatic structure qualifies as an imide-function compound under heading 2925. It is classified under tariff item 2925.19.00 as an imide not otherwise specified, as it is not saccharin or a specifically named imide.
2,2',6,6'-Tetraisopropyldiphenylcarbodiimide (TIPC)
2,2',6,6'-Tetraisopropyldiphenylcarbodiimide (TIPC) is a sterically hindered aromatic carbodiimide used as a coupling agent in peptide synthesis and polymer chemistry. Although named as a carbodiimide, it is an imine-function compound under heading 2925, as carbodiimides contain the imine functional group. It is classified under tariff item 2925.19.00 as an imine-function compound not otherwise specified.
4-Nitrophthalimide
4-Nitrophthalimide is a nitro-substituted aromatic imide used in dye synthesis and as a pharmaceutical intermediate. The nitro group is permitted per Chapter 29 notes, and the compound remains a chemically defined imide. It is classified under tariff item 2925.19.00 as an imide not otherwise specified.
4-Nitro phthalimide
4-Nitro phthalimide contains a nitro group on the benzene ring of the imide structure. Per Chapter 29 Note 4, nitro groups are not considered nitrogen functions for heading 29.29, so this compound remains classified under tariff item 2925.19.00 as an imide derivative.
99% Pure N-Chlorosuccinimide Powder
99% Pure N-Chlorosuccinimide Powder is a high-purity chemically defined cyclic imide used for laboratory and industrial synthesis. Despite minor impurities, it remains a separate chemically defined compound under Chapter 29 Note 1(a), qualifying for tariff item 2925.19.00.
Benzamide Imide Derivative
Benzamide Imide Derivative is a specialty aromatic imide from benzamide cyclization used in high-performance polymers. As a carboxyimide-function compound, it meets Chapter 29 requirements for chemically defined imides. It is classified under tariff item 2925.19.00 as an imide not otherwise specified.