2-Methyl-1,4-Naphthoquinone (Menadione) from China
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 — China → United States
5.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 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