Cyclopentane
Cyclopentane (C5H10) is a five-membered ring cycloalkane under HTS 2902.19.00. Primarily used as a blowing agent in polyurethane foam production for insulation, it is a separate chemically defined cyclic hydrocarbon.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered acyclic saturated hydrocarbon
Pure acyclic alkanes fall under 2901; structural difference determines chapter placement.
If imported as refrigerant mixture
Organic composite solvents and refrigerants prepared for use are in Chapter 38.
If liquefied petroleum gas form
Chapter 27 covers liquefied cyclic hydrocarbons like propane derivatives.
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Import Tips & Compliance
• Include technical data sheet confirming cyclopentane structure per Chapter 29 note (a)
• Classify as UN 1146 Extremely Flammable Liquid with Category 1 labeling
• For foam production use, avoid Chapter 38 if not pre-mixed with other chemicals
Related Products under HTS 2902.19.00
Cyclohexane
Cyclohexane is a six-carbon cycloalkane (C6H12) classified under HTS 2902.19.00 as a cyclane, a saturated cyclic hydrocarbon. It is a colorless, flammable liquid used primarily as a solvent in industrial applications and as an intermediate in nylon production.
Methylcyclohexane
Methylcyclohexane (C7H14) is a cycloalkane with a methyl substituent, falling under HTS 2902.19.00 as 'other' cyclanes. Used as a solvent in rubber production and chromatography, it exemplifies alkyl-substituted cyclic hydrocarbons.
Ethylcyclohexane
Ethylcyclohexane (C8H16) is an alkyl-substituted cycloalkane classified in HTS 2902.19.00 as other cyclanes. Used in organic synthesis and as a high-purity solvent in research applications.
Decalin (Decahydronaphthalene)
Decalin, or decahydronaphthalene (C10H18), is a bicyclic cycloalkane under HTS 2902.19.00. Used as a solvent in paint removers and as a reference standard in fuel testing.
Norborane (Bicyclo[2.2.1]heptane)
Norborane is a bicyclic cycloalkane classified under HTS 2902.19.00 as other cyclanes. Used in specialty polymer production and pharmaceutical intermediates.
1,3-Dimethylcyclohexane
1,3-Dimethylcyclohexane is a disubstituted cycloalkane under HTS 2902.19.00. Employed in fragrance synthesis and as a GC calibration standard.