Caffeine Anhydrous Powder
Caffeine anhydrous is a xanthine alkaloid, structurally related to theophylline but with a different methyl substitution pattern. It is not a theophylline derivative; it is a separate alkaloid of heading 29.39. Therefore, it does not fall under tariff item 2939.59.00 but under a different subheading for caffeine.
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 caffeine, not a theophylline derivative
Caffeine is a distinct alkaloid, classified separately from theophylline derivatives.
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
• Caffeine is classified under subheading 2939.30, not 2939.59
• Ensure the correct tariff item is used to avoid penalties
• For food or beverage use, comply with Health Canada's Food and Drug Regulations
• Keep records of the product's purity and source for CBSA verification
Related Products under Tariff item 2939.59.00
Acefylline Piperazine Salt
Acefylline piperazine is a salt formed between acefylline (theophylline-7-acetic acid) and piperazine, used as a vasodilator. As an organic salt of a theophylline derivative, it is classified under tariff item 2939.59.00 as 'Other' theophylline derivatives, per Chapter 29 Note 5(C)(1).
Aminophylline Powder
Aminophylline is a defined complex of theophylline and ethylenediamine, explicitly listed in the tariff item description. It is a bronchodilator used in asthma and COPD treatments. The product is a separate chemically defined compound, qualifying under Chapter 29 Note 1(a).
Bamethan Theophylline
Bamethan theophylline is a combination of the vasodilator bamethan and theophylline, forming a salt or derivative. As a theophylline derivative with an additional amine function, it falls under tariff item 2939.59.00 as 'Other'. The product is a separate chemically defined compound used in circulatory medications.
Choline Theophyllinate
Choline theophyllinate is a quaternary ammonium salt of theophylline, used for its gastric protection properties. As an organic salt of a theophylline derivative, it is classified under tariff item 2939.59.00 as 'Other', per Chapter 29 Note 5(C)(1). The product is a separate chemically defined compound.
Dyphylline API
Dyphylline is 7-(2,3-dihydroxypropyl)theophylline, a theophylline derivative used as a bronchodilator. It is a separate chemically defined compound, classified under tariff item 2939.59.00 as 'Other' theophylline derivatives. The product is a pure active pharmaceutical ingredient (API).
Paraxanthine Pharmaceutical Intermediate
Paraxanthine is 1,7-dimethylxanthine, a metabolite of caffeine and a structural isomer of theophylline. It is not a theophylline derivative but a separate xanthine alkaloid. Therefore, it does not fall under tariff item 2939.59.00; it is classified under another subheading for xanthine alkaloids.