Alkylbenzenes and polyalkylbenzenes
Cyclic hydrocarbons: > Other: > Alkylbenzenes and polyalkylbenzenes
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2902.90.30
Cumene (Isopropylbenzene)
Cumene is an alkylbenzene consisting of a benzene ring with an isopropyl group attached, used primarily as an intermediate in phenol and acetone production. It falls under HTS 2902.90.30 as a chemically defined cyclic hydrocarbon with an alkyl substituent. This classification applies to pure alkylbenzenes meeting chapter 29 criteria for separate organic compounds.
p-Cymene (4-Isopropyltoluene)
p-Cymene is a naturally occurring alkylbenzene with both methyl and isopropyl groups on the benzene ring, used in fragrance synthesis and polymer production. Classified under HTS 2902.90.30 as a polyalkylbenzene fitting chapter criteria for pure organic compounds. Its structure qualifies it specifically within this alkylbenzene subheading.
n-Butylbenzene
n-Butylbenzene features a straight-chain butyl group attached to benzene, serving as an intermediate for surfactants and plasticizers. It qualifies under HTS 2902.90.30 as a chemically defined alkylbenzene per Chapter 29 note (a). The pure compound status distinguishes it from mixtures.
Diisopropylbenzene
Diisopropylbenzene contains two isopropyl groups on the benzene ring, used in resin and specialty chemical manufacturing. As a polyalkylbenzene, it precisely matches HTS 2902.90.30 criteria for cyclic hydrocarbons with multiple alkyl substituents. Chapter notes confirm applicability to pure isomers.
1,4-Diethylbenzene
1,4-Diethylbenzene is a symmetric polyalkylbenzene used in high-performance polymer production like polyethylene naphthalate. It falls under HTS 2902.90.30 as a pure dialkyl-substituted cyclic hydrocarbon. The para configuration distinguishes its chemical properties for specific syntheses.
sec-Butylbenzene
sec-Butylbenzene has a secondary butyl group on the benzene ring, serving as precursor for styrene derivatives. Classified in HTS 2902.90.30 as an alkylbenzene isomer meeting purity standards of Chapter 29. Its branched structure provides specific reactivity profiles.
1,3,5-Trimethylbenzene (Mesitylene)
Mesitylene is a symmetrical trialkylbenzene used as solvent and pyrotechnic fuel. It qualifies under HTS 2902.90.30 as a polyalkylbenzene per the exact subheading description. High symmetry gives unique solvency properties.
Isoamylbenzene
Isoamylbenzene features a branched five-carbon alkyl chain on benzene, used in fine chemical synthesis. Falls under HTS 2902.90.30 as chemically defined alkylbenzene. The isopentyl structure provides steric hindrance for selective reactions.
Tert-Butylbenzene
Tert-butylbenzene has a tertiary butyl group providing steric bulk, used in polymerization regulators. Classified HTS 2902.90.30 as alkylbenzene isomer. Quaternary carbon prevents certain substitution reactions.
1,2,4,5-Tetramethylbenzene (Durene)
Durene is a tetraalkylbenzene used in plasticizer and high-temperature solvent applications. Precisely matches HTS 2902.90.30 polyalkylbenzene definition. High methyl substitution enables specialized thermal properties.