4,4'-Di-tert-Butyldiphenylamine from Germany
This symmetrical diphenylamine derivative features tert-butyl groups at the 4 and 4' positions, qualifying under HTS 2921.44.70.00 as 'other' salts and derivatives. It functions as a high-temperature antioxidant in synthetic lubricants.
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
• Provide NMR or GC-MS spectra verifying substitution pattern and purity
• Note thermal stability data for proper storage and transport conditions
• Avoid packaging that suggests retail preparation (heading 3824)