Cumene (Isopropylbenzene)
Cumene is a colorless, volatile liquid alkylbenzene with the formula C6H5CH(CH3)2, used primarily as an intermediate in phenol and acetone production. It falls under HTS 2902.90.30.50 as an 'other' alkylbenzene, being a monoalkyl derivative of benzene with a cyclic hydrocarbon structure. This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If crude or unrefined with high impurities
Crude benzene derivatives with significant impurities fall under Chapter 27 hydrocarbons rather than pure Chapter 29 organic compounds.
If mixed with solvents for specific industrial formulations
Mixtures exceeding simple solutions may classify as chemical preparations in 3824 instead of pure compounds.
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Import Tips & Compliance
• Verify purity certificates as impurities may affect classification; ensure compliance with TSCA pre-manufacture notification for new chemical uses; avoid misclassification as aromatic solvents in Chapter 27
Related Products under HTS 2902.90.30.50
p-Cymene (Para-Isopropyltoluene)
p-Cymene is a naturally occurring polyalkylbenzene (C10H14) found in essential oils, used in fragrance and solvent applications. Classified under HTS 2902.90.30.50 as 'other' polyalkylbenzenes due to its two alkyl substituents on the benzene ring. Meets Chapter 29 requirements for chemically defined cyclic hydrocarbons.
1,2,4-Trimethylbenzene (Pseudocumene)
Pseudocumene is a flammable liquid polyalkylbenzene used in plasticizer and dye production. It qualifies for HTS 2902.90.30.50 as an 'other' trimethyl derivative of benzene. As a separate chemically defined compound per Chapter 29 note (a), it excludes crude petroleum fractions.
1,3,5-Trimethylbenzene (Mesitylene)
Mesitylene is a symmetrical trimethylbenzene used as a solvent and in resin production. Falls under HTS 2902.90.30.50 as 'other' polyalkylbenzenes, being a chemically pure cyclic hydrocarbon. Excluded from Chapter 27 as it's not a crude mixture.
n-Propylbenzene
n-Propylbenzene (C6H5C3H7) serves as an intermediate for pharmaceuticals and fragrances. Classified in HTS 2902.90.30.50 as other alkylbenzenes, distinct from ethyl- or isopropyl- variants. Pure compound status confirmed by chemical definition.
sec-Butylbenzene
sec-Butylbenzene is an alkylbenzene used in surfactant synthesis. It fits HTS 2902.90.30.50 as 'other' polyalkylbenzene equivalents with C4+ chains. Chemically defined per Chapter 29, excluding formulated mixtures.
1,2-Diethylbenzene
1,2-Diethylbenzene is a polyalkylbenzene intermediate for polymers. Under HTS 2902.90.30.50 as other alkyl-/polyalkylbenzenes beyond specific listings. Pure cyclic hydrocarbon meeting chapter purity standards.