4,4'-Methylenebis(2,6-dimethylphenylcyanate) from Japan
A sterically hindered cyanate ester explicitly listed in HTS 2929.90.0500, with two 2,6-dimethyl-4-cyanatophenyl groups linked by methylene bridge. Provides enhanced processability in resin systems for printed circuit boards. Classified here due to specific cyanato nitrogen functionality.
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
• GC-MS analysis recommended to confirm no isomer impurities affecting classification
• Label as 'reactive monomer - keep cool/dry' to prevent in-transit polymerization
• Check REACH/SVHC compliance for European transshipments involving this compound