Vinylcarbazole Monomer from Mexico
N-Vinylcarbazole monomer, explicitly listed in HTS 2933.99.1200 as an aromatic nitrogen heterocyclic compound. Polymerized to form polyvinylcarbazole used in photoreceptors, electronics, and optical applications. The carbazole ring with vinyl group determines classification.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.2%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• TSCA new chemical notification if not pre-registered
• Specify polymerization inhibitor concentration on SDS
• Storage requirements (dark/cool) must be documented