Naphthalene Epoxyether from Canada
This fused-ring aromatic system bears a three-membered epoxide functionality, qualifying under HTS 2910.90.20.00. Primarily used as a reactive monomer in specialty photoresist formulations and optical materials.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include HPLC chromatogram showing naphthalene substitution pattern
• TSCA inventory verification required for condensed ring aromatic epoxides
• Ship under temperature control (<30°C) to prevent polymerization