N-Phenethyl-4-piperidone with Anti-Dusting Agent from China
NPP powder treated with silica anti-dusting agent (<0.5%) per Chapter 29 note 2(g) for safe handling and identification. Maintains classification as pure heterocyclic compound HTS 2933.37.00.00. Essential for bulk pharmaceutical intermediate production.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6093.5%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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Anti-dusting agent <2% by weight; document doesn't render 'specific use' per note 2(g)
• Dust explosion risk assessment required for bulk powder imports >25kg
• Batch analysis confirming no functional group modification from additive essential