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Cyclic hydrocarbons. > Cyclanes, cyclenes and cycloterpenes: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2902.1
Anhydrous Cyclohexane Solvent
Anhydrous cyclohexane is a water-free form of the cyclic hydrocarbon, used in moisture-sensitive organic syntheses and Grignard reactions. It is a separate chemically defined organic compound, meeting the criteria of Chapter 29 Note 1(a). Supplied in sure-seal bottles to maintain anhydrous conditions.
2902.11.00Cyclohexane ACS Reagent Grade
Cyclohexane ACS reagent grade is a high-purity cyclic hydrocarbon used as a solvent in laboratory applications and chemical synthesis. It is a separate chemically defined organic compound, consistent with Chapter 29 Note 1(a). It meets stringent purity standards for analytical work.
2902.11.00Cyclohexane HPLC Grade
Cyclohexane HPLC grade is an ultra-pure form of the cyclic hydrocarbon, specifically for high-performance liquid chromatography mobile phases. It is a separate chemically defined organic compound, meeting Chapter 29 Note 1(a). Its high purity ensures reliable analytical results.
2902.11.00Cyclohexane NMR Solvent-d12
Cyclohexane NMR solvent-d12 is fully deuterated cyclohexane (C6D12), used as an NMR lock solvent and deuterium source. It is a separate chemically defined organic compound, and isotopic substitution does not change its classification under Chapter 29. It is essential for nuclear magnetic resonance spectroscopy.
2902.11.00Cyclohexane Rubber Solvent
Cyclohexane rubber solvent is a low-aromatic form of the cyclic hydrocarbon, used in tire manufacturing and rubber processing. It is a separate chemically defined organic compound, meeting Chapter 29 Note 1(a). It is distinguished from naphtha by its high cyclohexane content.
2902.11.00Industrial Cyclohexane 99.5% Pure
Industrial cyclohexane 99.5% pure is a technical-grade cyclic hydrocarbon used in large-scale manufacturing of nylon precursors like adipic acid and caprolactam. It is a separate chemically defined organic compound, meeting Chapter 29 Note 1(a). It is an essential feedstock in the chemical industry.
2902.11.00Technical Cyclohexane for Adhesives
Technical cyclohexane for adhesives is 99% pure cyclic hydrocarbon used as a volatile component in rubber cement and adhesive formulations. It is a separate chemically defined organic compound, meeting Chapter 29 Note 1(a). It provides solvency for natural rubber and resins.
2902.19.001,3-Dimethylcyclohexane
1,3-Dimethylcyclohexane is a disubstituted cycloalkane, a saturated cyclic hydrocarbon. It is used as an intermediate in fragrance synthesis and as a calibration standard in gas chromatography, and qualifies as an 'other' cyclane under this tariff item.
2902.19.00Adamantane
Adamantane (C10H16) is a highly symmetrical tricyclic cyclane used in pharmaceutical intermediates and materials science. It is a saturated cyclic hydrocarbon, classified as an 'other' cyclane under this tariff item.
2902.19.00Bicyclo[2.2.1]heptane
Bicyclo[2.2.1]heptane is a saturated bicyclic cyclane used in polymer precursor synthesis and fragrance chemistry. It is a separate chemically defined compound, classified as an 'other' cyclane under this tariff item.
2902.19.00Cyclodecane
Cyclodecane (C10H20) is a medium-ring saturated cycloalkane used as a phase-change material and polymer precursor. It is a separate chemically defined compound, classified as an 'other' cyclane under this tariff item.
2902.19.00Cycloheptane
Cycloheptane (C7H14) is a seven-membered saturated cycloalkane used as a solvent and reaction medium in chemical manufacturing. It is a separate chemically defined compound, classified as an 'other' cyclane under this tariff item.
2902.19.00Cyclohexane
Cyclohexane is a six-carbon saturated cyclic hydrocarbon (C6H12), a cyclane used primarily as an industrial solvent. It is a separate chemically defined compound, falling under this tariff item as an 'other' cyclane.
2902.19.00Cyclooctane
Cyclooctane is an eight-membered ring cycloalkane (C8H16), a saturated cyclic hydrocarbon. It is used in organometallic catalyst preparation and polymer research, and is classified as an 'other' cyclane under this tariff item.
2902.19.00Cyclopentane
Cyclopentane is a five-membered ring cycloalkane (C5H10), a saturated cyclic hydrocarbon. It is primarily used as a blowing agent in polyurethane foam production, and qualifies as an 'other' cyclane under this tariff item.
2902.19.00Decalin (Decahydronaphthalene)
Decalin, or decahydronaphthalene (C10H18), is a bicyclic cycloalkane used as a solvent in paint removers and as a reference standard in fuel testing. It is a saturated cyclic hydrocarbon, classified as an 'other' cyclane under this tariff item.
2902.19.00Dicyclopentadiene (DCPD)
Dicyclopentadiene (DCPD) is a bicyclic cyclic hydrocarbon produced by the Diels-Alder dimerization of cyclopentadiene. It is classified under tariff item 2902.19.00 as a cyclene other than cyclanes or cycloterpenes, being a separate chemically defined organic compound of Chapter 29. This industrial intermediate is primarily used in the production of resins, adhesives, and specialty chemicals.
2902.19.00Dicyclopentadiene Inhibited with BHT
Dicyclopentadiene inhibited with butylated hydroxytoluene (BHT) is DCPD containing a stabilizer to prevent premature polymerization during storage and transport. Under Chapter 29 note 1(f), products with added stabilizers necessary for preservation or transport remain classified in the same heading as the base compound. This product falls under tariff item 2902.19.00 as a cyclene with an authorized additive.
2902.19.00Distilled Dicyclopentadiene from Byproduct Streams
Distilled dicyclopentadiene recovered from C5 petroleum byproduct streams is a purified form of DCPD obtained through distillation. As a separate chemically defined cyclic hydrocarbon, it is classified under tariff item 2902.19.00. This industrial-grade material serves as a key feedstock for hydrocarbon resins and specialty polymers.
2902.19.00Endo-Dicyclopentadiene 95% Technical Grade
Endo-dicyclopentadiene at 95% technical grade is the predominant endo isomer of DCPD, used widely in synthetic resin manufacturing. Under Chapter 29 note 1(b), mixtures of isomers of the same organic compound are covered, and the endo form is the preferred isomer for many polymerization reactions. It is classified under tariff item 2902.19.00 as a cyclene.
2902.19.00Ethylcyclohexane
Ethylcyclohexane (C8H16) is an alkyl-substituted cycloalkane, a saturated cyclic hydrocarbon. It is used in organic synthesis and as a high-purity solvent in research, and falls under this tariff item as an 'other' cyclane.
2902.19.00Exo-Isomer Enriched Dicyclopentadiene
Exo-isomer enriched dicyclopentadiene contains 60-70% of the exo isomer, offering different reactivity for specialty polymer applications. As a mixture of isomers of the same organic compound, it is covered by Chapter 29 note 1(b) and classified under tariff item 2902.19.00. The exo-enriched form is used in high-performance resins and coatings.
2902.19.00High Purity Dicyclopentadiene 99%+
High purity dicyclopentadiene at 99%+ purity meets pharmaceutical intermediate standards and is classified under tariff item 2902.19.00 as a separate chemically defined cyclic hydrocarbon. This ultra-pure form is produced by extensive distillation to remove impurities for use in fine chemicals and pharmaceutical synthesis. It falls under Chapter 29 note 1(a) as a chemically defined organic compound.
2902.19.00Methylcyclohexane
Methylcyclohexane (C7H14) is a cycloalkane with a methyl substituent, a saturated cyclic hydrocarbon. It is used as a solvent in rubber production and chromatography, and is classified as an 'other' cyclane under this tariff item.
2902.19.00Norborane (Bicyclo[2.2.1]heptane)
Norbornane, also known as bicyclo[2.2.1]heptane, is a bicyclic cycloalkane used in specialty polymer production and pharmaceutical intermediates. It is a saturated cyclic hydrocarbon, classified as an 'other' cyclane under this tariff item.
2902.19.00Norbornane
Norbornane is a bridged cyclic hydrocarbon (C7H12) classified as a cyclane due to its saturated bicyclic structure with no aromatic characteristics. It serves as a key intermediate in organic synthesis, and falls under this tariff item as an 'other' cyclane.
2902.19.00Perhydroindane
Perhydroindane is a fully saturated bicyclic hydrocarbon (decahydro-1H-indene) used in high-performance lubricant formulations. It is a fused ring cyclane, classified as an 'other' cyclane under this tariff item.
2902.19.00Spiropentane
Spiropentane (C5H8) features two fused cyclopropane rings at a single carbon atom, making it a unique cyclane. It is primarily used in advanced organic chemistry research, and is classified as an 'other' cyclane under this tariff item.