Fluorene-2,7-dicarboxylic Acid from Canada
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 — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Tricyclic aromatic confirmed via NMR aromatic proton integration
• Optical grade requires <1ppb fluorescent impurities
• Single compound vs statistical copolymers distinguished by GPC