9-Fluorenone-2-Carboxylic Acid from Mexico
A fluorenone derivative with carboxylic acid at position 2, used in advanced materials and OLED synthesis. Falls under HTS 2918.30.2500 as an aromatic ketone-carboxylic acid specifically referenced in additional U.S. note 3 to section VI.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• HPLC purity certificate mandatory; fluorenone impurities can shift classification
• Special packaging for light-sensitive material; declare as 'organic semiconductor intermediate'
• Avoid bulk powder entry without anti-caking agent justification per chapter note (f)