Fluorene-2,7-dicarboxylic Acid from Germany
Fluorene-based dicarboxylic acid for high refractive index polymers in optics. Fused ring system provides rigidity. HTS 2917.39.70.00 aromatic polycarboxylic acid classification.
Duty Rate — Germany → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Tricyclic aromatic confirmed via NMR aromatic proton integration
• Optical grade requires <1ppb fluorescent impurities
• Single compound vs statistical copolymers distinguished by GPC