Thiamine Pyrophosphate (TPP) Cofactor
Thiamine pyrophosphate is the biologically active coenzyme form of vitamin B1, essential for carbohydrate metabolism. It is a chemically defined organic compound that functions as a vitamin B1 derivative, falling under tariff item 2936.22.00.
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 product is not classified as a vitamin B1 derivative
Thiamine pyrophosphate is a derivative of vitamin B1, but if not specifically B1, it may fall under other vitamin 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
• Provide a certificate of analysis and confirm the product's use as a vitamin B1 derivative
• Have documentation showing its coenzyme function
• Check if the product requires a Drug Identification Number (DIN) if used in therapeutic applications
Related Products under Tariff item 2936.22.00
Benfotiamine Pharmaceutical Grade
Benfotiamine is a lipid-soluble derivative of thiamine (vitamin B1) with enhanced bioavailability, used primarily in pharmaceutical preparations for neuropathy and other conditions. It is a separate chemically defined organic compound that functions as a vitamin B1 derivative, falling under tariff item 2936.22.00.
Fursultiamine Hydrochloride
Fursultiamine hydrochloride is a disulfide derivative of thiamine with prolonged action, used in treatments for vitamin B1 deficiency. It is a chemically defined organic compound that acts as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.
Prosultiamine Vitamin B1 Derivative
Prosultiamine is a prodrug ester of thiamine with high lipid solubility, used for neurological applications. It is a chemically defined organic compound that serves as a vitamin B1 derivative, fitting under tariff item 2936.22.00.
Thiamine Allyl Disulfide
Thiamine allyl disulfide is a lipophilic derivative of vitamin B1 found in garlic, used in nutritional supplements. It is a chemically defined organic compound that functions primarily as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.
Thiamine HCl API Pharmaceutical Bulk
Thiamine HCl API is an active pharmaceutical ingredient grade thiamine hydrochloride used in compounding and manufacturing. It is a chemically defined organic compound and a derivative of vitamin B1, falling under tariff item 2936.22.00.
Thiamine Hydrochloride USP
Thiamine hydrochloride is the most common salt form of vitamin B1, a water-soluble derivative used primarily as a vitamin supplement. It is a chemically defined organic compound that qualifies under tariff item 2936.22.00 as a vitamin B1 derivative.