Benzidine Sulfate from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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