Pyridine-3-carboxylic Acid (Nicotinic Acid) (CAS 59-67-6) from China
Nicotinic acid, or vitamin B3, is a pyridine derivative with a carboxylic acid at position 3, essential for human nutrition and pharmaceutical use. The pyridine ring structure dictates classification under this heading per Chapter 29 notes on acid functions. HTS 2933.31.00.00 applies to this pyridine compound.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• FDA prior notice required for food supplement use
• USP grade requires certificate of analysis for pharmacopeia compliance
• Avoid bulk packaging over 25kg to prevent mixture classification