2,2,3,3-Tetrachlorocyclobutanone
Despite ketone functionality, 2,2,3,3-tetrachlorocyclobutanone classifies primarily by halogenation under HTS 2903.89.70. The cyclobutane ring with geminal dichlorides defines it as halogenated cyclanic derivative. Chapter notes prioritize halogenation over minor oxygen functions.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by ketone function
If halogenation secondary to ketone, later numerical heading 2914 applies per Chapter 29 rule.
If three-membered ring analog
Epoxides/cyclic ketones with specific ring heteroatoms excluded from 2932 but could apply.
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Import Tips & Compliance
• Include carbonyl stretch IR data to document oxygen function without reclassification
• Store below 0°C to prevent ring expansion rearrangement
• Label as Eye Irritant Category 2A per GHS standards
Related Products under HTS 2903.89.70
Hexachlorocyclohexane (Lindane)
Hexachlorocyclohexane, commonly known as Lindane, is a chlorinated cyclic hydrocarbon used primarily as an insecticide. It falls under HTS 2903.89.70 as a halogenated derivative of cyclanic hydrocarbons, specifically featuring multiple chlorine atoms attached to a cyclohexane ring. This classification applies to its chemically defined structure meeting Chapter 29 criteria for separate organic compounds.
Hexachlorocyclopentadiene
Hexachlorocyclopentadiene is a highly chlorinated cyclopentadiene derivative used in synthesis of pesticides and flame retardants. Classified under HTS 2903.89.70 as 'other' halogenated derivatives of cyclanic hydrocarbons due to its fully chlorinated five-membered ring structure. Meets Chapter 29 note (a) as a separate chemically defined organic compound.
Chlorendic Anhydride
Chlorendic anhydride (1,4,5,6,7,7-hexachlorocyclopentene-3,4-dicarboxylic anhydride) is a halogenated cyclic compound used in flame-retardant resins. It qualifies for HTS 2903.89.70 as a halogenated derivative of cyclenic hydrocarbons with its characteristic chlorinated cyclopentene ring. Excluded from heterocyclic provisions by Chapter 29 notes.
Pentachlorocyclopropane
Pentachlorocyclopropane is a three-carbon ring compound with five chlorine substitutions, used in specialty chemical synthesis. Falls under HTS 2903.89.70 as an 'other' halogenated cyclanic hydrocarbon derivative. Its small strained ring qualifies as cyclanic per tariff structure.
Tetrachlorocyclobutane
Tetrachlorocyclobutane features a four-membered ring with four chlorine atoms, used as a reactive intermediate. Classified in HTS 2903.89.70 for halogenated cyclanic hydrocarbon derivatives outside specific subheadings. Pure compound status confirmed by Chapter 29 note (a).
1,2,3,4-Tetrachlorocyclohexene
1,2,3,4-Tetrachlorocyclohexene contains a six-membered ring with four adjacent chlorine atoms and one double bond. HTS 2903.89.70 covers this as 'other' halogenated cyclenic hydrocarbon derivative. Distinguish from fully saturated cyclanic compounds.