4,4'-Methylene bis(2,6-Diisopropylaniline) from Japan
This sterically hindered diarylamine with isopropyl substituents is specifically identified in HTS 2921.59.1700. It functions as a high-performance antioxidant stabilizer for polyolefins and synthetic lubricants.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify alkyl chain analysis to confirm diisopropyl substitution
• TSCA reporting required for >10,000 lbs/year imports
• Distinguish from diethyl analog with GC-MS data