Pharmaceutical Grade Sulfanilic Acid USP
Pharmaceutical Grade Sulfanilic Acid USP is a high-purity aromatic monoamine derivative used in diagnostic reagents and the synthesis of sulfa drugs. It meets pharmacopeia standards and is classified as a separate chemically defined organic compound under Chapter 29.
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 put up in measured doses or for retail sale as a dye
Section note 2 directs classification to heading 32.04 for synthetic organic colouring matter put up for retail sale.
If mixed with other substances for a specific industrial application
Mixtures not meeting Chapter 29 criteria may fall under residual chemical products.
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 meets USP grade specifications and include a certificate of analysis with your customs documentation
• Verify that any stabilizers added are solely for preservation or transport, as per Chapter 29 note (f), to maintain classification
• Check if a Controlled Goods or import permit is needed for your specific end-use
Related Products under Tariff item 2921.42.00
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