1,4-Naphthoquinone USP Grade from Mexico
1,4-Naphthoquinone is a quinone compound used in antifungal drugs and as a precursor for vitamin K analogs. It is classified under HTS 2914.69.21.00 as a drug due to its USP pharmaceutical grade and specific medicinal applications per Chapter 29.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• USP certificate mandatory; include microbial limits testing for pharma import clearance
• Declare exact isomer purity to comply with Chapter 29 note (b) on mixtures