Coenzyme Q9 (Ubiquinone-9)
Ubiquinone-9 (CoQ9) is a 9-isoprene unit benzoquinone used in biochemical research and as a nutritional supplement intermediate. HTS 2914.69.90.00 covers this as 'other' quinone with oxygen function; distinguished from CoQ10 by chain length. Mitochondrial electron transport component.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If labeled/sold as vitamin supplement
Vitamin-like coenzymes classified as provitamins in 2936 regardless of quinone structure.
If biotech-produced fermentation extract
Diagnostic reagents or lab reagents containing biochemicals may shift to Chapter 38.
If exactly matching specific CoQ subheading
More specific CoQ10 subheading exists; verify exact isoprene count.
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Import Tips & Compliance
• Include HPLC purity certificate (>98%) and isoprene chain verification
• FDA dietary supplement notification if marketed as nutritional product
• Store/transport at -20°C; declare temperature control requirements
Related Products under HTS 2914.69.90.00
1,4-Naphthoquinone
1,4-Naphthoquinone is a yellow crystalline quinone compound with the formula C10H6O2, featuring two carbonyl groups conjugated in a benzene ring fused to a cyclohexene ring. It falls under HTS 2914.69.90.00 as an 'other' quinone with oxygen function, distinct from anthraquinone or coenzyme Q10. Used in organic synthesis and dye production.
1,2-Naphthoquinone
1,2-Naphthoquinone is an ortho-quinone derivative of naphthalene with two adjacent carbonyl groups, used as an intermediate in pesticide and pharmaceutical synthesis. Classified in HTS 2914.69.90.00 as an 'other' quinone with oxygen function, not specified elsewhere in 2914. Its reactivity stems from the conjugated quinone system.
9,10-Phenanthraquinone
9,10-Phenanthraquinone is a tricyclic quinone with carbonyl groups at positions 9 and 10 of the phenanthrene skeleton, used in organic electronics and as a dye intermediate. It qualifies for HTS 2914.69.90.00 as an 'other' quinone compound with characteristic oxygen function per heading 2914.
2-Methyl-1,4-Naphthoquinone (Menadione)
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.
Anthraquinone-2-sulfonic Acid
Anthraquinone-2-sulfonic acid is a sulfonated quinone derivative used as an intermediate for disperse dyes and pharmaceuticals. Classified in HTS 2914.69.90.00 as 'other' quinones; sulfonation noted but quinone function principal. Water solubility from sulfonic acid group.
Chloranil (Tetrachloro-1,4-benzoquinone)
Chloranil is a tetrachloro derivative of 1,4-benzoquinone used as an oxidizing agent and pesticide intermediate. Falls under HTS 2914.69.90.00 as 'other' quinone; halogenation secondary to quinone oxygen function per Chapter 29 classification notes.