4,4'-Diaminodiphenylmethane (DADPM)
4,4'-Diaminodiphenylmethane (DADPM) is an aromatic polyamine used in polyurethane curing agents. Although it is not a phenylenediamine or diaminotoluene, it is a derivative of these compounds, and it falls under 2921.51.00 as an 'other' aromatic polyamine derivative.
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 product is considered another aromatic polyamine not specifically listed
This covers other aromatic polyamines and derivatives not listed in 2921.51.
If the product contains other nitrogen functions, such as isocyanates
This heading covers compounds with other nitrogen functions, which may apply if DADPM has additional nitrogen groups.
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 the product's chemical structure, as DADPM is not a simple phenylenediamine but a derivative; the CBSA may require a detailed description
• Provide the product's end-use (e.g
• polyurethane curing) to support classification
• Check if the product is subject to any Canadian regulations on aromatic amines, such as the CEPA
Related Products under Tariff item 2921.51.00
1,4-Diaminobenzene (p-Phenylenediamine Base)
>- 1,4-Diaminobenzene (p-phenylenediamine base) is used in photographic chemicals and dyes. It is specifically named in tariff item 2921.51.00, which covers p-phenylenediamine and its derivatives and salts.
2,4-Diaminotoluene (2,4-TDA)
>- 2,4-Diaminotoluene (2,4-TDA) is a diaminotoluene isomer used in polyurethane elastomers, dyes, and hair colorants. It is specifically named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
2,4-Diaminotoluene (2,4-Toluenediamine)
>- 2,4-Diaminotoluene (2,4-toluenediamine) is a diaminotoluene isomer used in dyes, polymers, and as a chain extender. It is specifically named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
2,4-Diaminotoluene Sulfate
2,4-Diaminotoluene sulfate is a salt of diaminotoluene, an aromatic polyamine, used as an intermediate and stabilizer in photographic chemical formulations, particularly for dye developers. As a chemically defined organic compound with an added sulfate group, it falls under tariff item 2921.51.00, which covers o-, m-, p-phenylenediamine, diaminotoluenes, and their derivatives and salts.
2,5-Diaminotoluene Sulfate
>- 2,5-Diaminotoluene sulfate is a salt used primarily in permanent hair coloring formulations. Under Chapter 29 note 5(C)(1), salts of organic compounds are classified with the parent compound, so this salt of a diaminotoluene falls under tariff item 2921.51.00.
2,6-Diaminotoluene
>- 2,6-Diaminotoluene is a diaminotoluene isomer used as a dye intermediate and polymer modifier. It is a diaminotoluene derivative explicitly named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.