2921.59.80/Benzidine Sulfate/Mexico

Benzidine Sulfate from Mexico

Benzidine sulfate is the salt form of the aromatic polyamine benzidine, used in analytical chemistry and dye production. As a salt of an aromatic polyamine, it falls under HTS 2921.59.80 per Chapter 29 note 3(C)(1), classifying inorganic salts with organic amine compounds in the organic compound's heading.

Duty Rate — Mexico → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Specify salt formation details (sulfuric acid derived) and provide pH/stability data for classification confirmation

• Hazard labeling mandatory (carcinogen); mismatches cause exam/hold

• Avoid bulk water solutions; exceed Chapter 29 note (d) limits shift to mixtures

Benzidine Sulfate from Mexico — Import Duty Rate | HTS 2921.59.80