4-Ethylguaiacol Stabilized for Transport from Japan
4-Ethylguaiacol with added polymerization inhibitor (BHT <0.1%) for safe transport, allowed under Chapter 29 note (f) as necessary stabilizer. Remains classified as the pure compound under HTS 2909.50.10.00. Essential for bulk shipments to prevent oxidation during ocean freight.
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
• Document stabilizer type/concentration on invoice; must prove it's solely for preservation per note (f)
• Use UN-approved drums with proper closure for liquid ether-phenols to pass CBP inspection