4,4'-Diamino-3,3'-dimethylbiphenyl from Germany
This biphenyl-based aromatic polyamine functions as an intermediate for high-performance polymers and dyes. HTS 2921.59.4000 applies as it is described among products in additional U.S. note 3 to section VI.
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
• Use HPLC chromatograms to demonstrate single compound status
• Confirm no metal coordination that would invoke special salt classification rules
• Separate from diaminodiphenylmethane shipments due to structural differences