9,10-Phenanthraquinone from China
9,10-Phenanthraquinone is a tricyclic quinone with carbonyl groups at positions 9 and 10 of the phenanthrene skeleton, used in organic electronics and as a dye intermediate. It qualifies for HTS 2914.69.90.00 as an 'other' quinone compound with characteristic oxygen function per heading 2914.
Duty Rate — China → United States
18%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include FTIR or NMR spectra in documentation to verify quinone structure vs aromatic ketone
• Register under TSCA Inventory; provide PMN if new chemical substance
• Ship in amber glass with stabilizer to prevent auto-oxidation during transport