Vitamin K3 (Menadione Sodium Bisulfite) from Mexico
Menadione sodium bisulfite is a water-soluble modified aromatic derivative of vitamin K3 used in animal nutrition. Falls under HTS 2936.29.20.00 as other unmixed aromatic vitamin derivatives. Synthetic naphthoquinone structure qualifies despite specific vitamin K provisions.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%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
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include salt formation documentation per Chapter 29 note on inorganic salts of organic compounds classifying with parent
• Animal health imports require veterinary certificates; avoid retail packaging to stay in bulk chemical classification
• Test for anti-dusting agents; additions per note (g) allowed only if not rendering specific use suitable