2-Methyl-1,4-Naphthoquinone (Menadione) from Japan
Menadione, or 2-methyl-1,4-naphthoquinone, is a synthetic vitamin K3 precursor used in animal feed and pharmaceuticals. Falls under HTS 2914.69.90.00 as an 'other' quinone; distinguished from hormone products of 2937. Its methyl-substituted quinone structure provides vitamin K activity.
Duty Rate — Japan → United States
22%
Rate breakdown
9903.04.629.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Obtain FDA prior notice for animal feed use; comply with AAFCO specifications
• Document purity >97% to avoid mixture classification under 3824
• Include vitamin activity assay results for CBP verification