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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing additional heterocyclic nitrogen
Heterocyclic compounds with nitrogen take precedence over quinone classification per Chapter notes.
If imported as halogenated (chlorinated) derivative
Halogenated, sulfonated derivatives classified by halogen function first in numerical order.
If extracted from natural sources for coloring
Colouring matter of vegetable/animal origin excluded from Chapter 29 per chapter exclusions.
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Import Tips & Compliance
• Include FTIR or NMR spectra in documentation to verify quinone structure vs aromatic ketone
• Register under TSCA Inventory; provide PMN if new chemical substance
• Ship in amber glass with stabilizer to prevent auto-oxidation during transport
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.
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.
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.
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.