Polymyxin B Sulfate
Polymyxin B sulfate is a natural cationic polypeptide antibiotic from Paenibacillus polymyxa, used for gram-negative infections. As a sulfate salt of the organic compound polymyxin B, it is classified with the parent compound under Chapter 29 Note 5(C)(1).
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:
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
• Confirm the product is a pure salt, not mixed with other antibiotics
• Provide a CoA to verify the polymyxin B base content
• Check if the product is for pharmaceutical use, which may require a DIN
Related Products under Tariff item 2941.90.00
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Amphotericin B is a natural polyene antifungal antibiotic produced by Streptomyces nodosus, used to treat systemic fungal infections. It is a separate chemically defined organic compound, qualifying under Chapter 29 Note 1(a).
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