Mesitylene (1,3,5-Trimethylbenzene)
Mesitylene is 1,3,5-trimethylbenzene (C9H12), a symmetrical trialkylbenzene. It is explicitly named in HTS 2902.90.20.00 as a cyclic hydrocarbon used as a solvent and in resin production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for 1,2,4- or 1,2,3-trimethylbenzene isomers
Only 1,3,5-isomer specifically enumerated; others use residual code.
If formulated as organic solvent mixture for industrial use
Retail solvent preparations fall under Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm three identical NMR singlets at 6.8, 2.3 ppm for structural verification
• Specify water content <0.02% for anhydrous grades
• Use steel drums with nitrogen padding for moisture-sensitive shipments
Related Products under HTS 2902.90.20.00
Acenaphthene
Acenaphthene is a polycyclic aromatic hydrocarbon (PAH) with the formula C12H10, consisting of naphthalene with an ethylene bridge. It falls under HTS 2902.90.20.00 as a specific cyclic hydrocarbon listed in the tariff description for separate chemically defined organic compounds.
Chrysene
Chrysene (C18H12) is a polycyclic aromatic hydrocarbon composed of four fused benzene rings. Classified under HTS 2902.90.20.00 as an explicitly listed cyclic hydrocarbon used in research and as a chemical intermediate.
p-Cymene
p-Cymene (para-cymene, C10H14) is a monoterpene aromatic hydrocarbon with methyl and isopropyl substituents on benzene. It is explicitly listed under HTS 2902.90.20.00 as a cyclic hydrocarbon used in fragrance and flavor industries.
Fluorene
Fluorene (C13H10) is a tricyclic aromatic hydrocarbon with a central five-membered ring. It qualifies under HTS 2902.90.20.00 as a named cyclic hydrocarbon used in dye manufacturing and as a fluorescent probe.
Indene
Indene (C9H8) is a bicyclic hydrocarbon with a benzene ring fused to a cyclopentene ring. Listed specifically under HTS 2902.90.20.00 as a cyclic hydrocarbon used in resin and synthetic rubber production.
Phenanthrene
Phenanthrene (C14H10) is a tricyclic aromatic hydrocarbon with angularly fused rings. Classified under HTS 2902.90.20.00 as a specifically listed cyclic hydrocarbon used in explosives and dyes.