1,3,3-Trimethyl-2-Methyleneindoline
1,3,3-Trimethyl-2-methyleneindoline is an indoline derivative used as a key intermediate in the production of photochromic dyes and other specialty chemicals. As a heterocyclic compound with a nitrogen hetero-atom, it is classified under tariff item 2933.99.00.
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 compound is a quinoline or isoquinoline derivative
Quinoline and isoquinoline derivatives are more specifically classified in subheading 2933.49.
If the compound contains a pyrimidine, piperazine, or triazine ring
Compounds with those rings are classified in subheading 2933.59 rather than the residual 'other' subheading.
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; if it contains impurities, they must be incidental to manufacture
• Verify the solvent or stabilizer additions do not make it suitable for a specific use, which could change classification
• Keep technical documentation ready for CBSA verification
Related Products under Tariff item 2933.99.00
1-Methylindole
1-Methylindole is a modified aromatic indole derivative with a methyl group at the nitrogen position, classified as a separate chemically defined organic compound with a nitrogen hetero-atom only. It falls under heading 29.33 as an 'other' heterocyclic compound. This compound is commonly used in organic synthesis for pharmaceutical and chemical applications.
2-Methylindole
2-Methylindole is a simple alkyl-substituted indole with methylation at position 2, classified as a separate chemically defined organic compound with a nitrogen hetero-atom only. It falls under heading 29.33 as an 'other' heterocyclic compound. This compound is used in perfume synthesis and as a pharmaceutical intermediate.
3-Acetylindole
3-Acetylindole contains a ketone functionality at position 3 of the indole structure, classified as a separate chemically defined organic compound with a nitrogen hetero-atom only. It falls under heading 29.33 as an 'other' heterocyclic compound, with the heterocycle taking precedence over the ketone classification. This compound is an important intermediate for alkaloid synthesis.
3-Aminocarbazole
3-Aminocarbazole is a carbazole derivative with an amino group substitution, maintaining the core heterocyclic nitrogen structure. It is used as an intermediate in pharmaceutical and dye synthesis and is classified under tariff item 2933.99.00.
4-Carbazoleboronic Acid
4-Carbazoleboronic acid retains the core carbazole heterocyclic structure with a boronic acid substitution. It is used as an intermediate in organic synthesis and is classified under tariff item 2933.99.00 as an organo-inorganic compound.
5-Methoxyindole
5-Methoxyindole contains a methoxy substitution on the benzene ring of indole, classified as a separate chemically defined organic compound with a nitrogen hetero-atom only. It falls under heading 29.33 as an 'other' heterocyclic compound. This compound is a key intermediate for melatonin synthesis.