Hexachlorocyclohexane (Technical Grade)
Technical grade hexachlorocyclohexane (HCH) is a mixture of isomers of chlorinated cyclohexane used historically as pesticide intermediate (excluding Lindane isomer). Falls under HTS 2903.89.70.90 per Chapter 29 note (b) for mixtures of isomers of same organic compound, specifically halogenated cyclanic hydrocarbons. Excludes purified single isomers which may have specific subheadings.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alpha-isomer (Lindane) exceeds threshold
Pure Lindane has specific classification; mixtures dominated by regulated isomers may require separate handling.
If when imported as pesticide waste or contaminated byproduct
Chemical waste or residues classify under Chapter 38 prepared substances.
If for non-halogenated cyclic alcohol precursors
Pre-halogenation cyclic alcohols fall in earlier Chapter 29 oxygen compounds.
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Import Tips & Compliance
• Submit isomer composition analysis to distinguish from single-isomer products; ensure Stockholm Convention compliance documentation for persistent organic pollutants; use proper waste byproduct declarations
Related Products under HTS 2903.89.70.90
Hexachlorocyclopentadiene
Hexachlorocyclopentadiene is a chlorinated cyclic hydrocarbon used primarily as a chemical intermediate in pesticide and flame retardant production. It falls under HTS 2903.89.70.90 as a halogenated derivative of cyclanic hydrocarbons, specifically featuring multiple chlorine atoms attached to a cyclopentadiene ring structure. This classification aligns with Chapter 29 notes for separate chemically defined organic compounds with halogen substitution.
Chlorendic Anhydride
Chlorendic anhydride (1,4,5,6,7,7-hexachloro-5-norbornene-2,3-dicarboxylic anhydride) is a halogenated bicyclic compound used in flame-retardant resins and coatings. Classified under HTS 2903.89.70.90 as a halogenated cyclanic derivative despite anhydride function, following Chapter 29 rule prioritizing latest numerical heading for multi-function compounds. Meets criteria for chemically defined cyclic halogenated hydrocarbons.
Tetrachlorocyclohexane
Tetrachlorocyclohexane is a partially chlorinated cyclohexane derivative used as chemical intermediate and solvent. Classified in HTS 2903.89.70.90 as 'other' halogenated cyclanic hydrocarbons not specified in prior subheadings. Qualifies under Chapter 29 for separate chemically defined halogenated cyclic compounds.
Pentachlorocyclopentane
Pentachlorocyclopentane serves as a reactive intermediate in fluorochemical and pesticide synthesis, featuring five chlorine atoms on a five-membered cyclopentane ring. HTS 2903.89.70.90 applies as a halogenated cyclanic hydrocarbon per Chapter 29 definitions, excluding sulfonated or aromatic derivatives. The high chlorine content requires specialized safety handling.
Dichlorocyclooctane
1,5-Dichlorocyclooctane is an eight-membered ring chlorinated hydrocarbon used in polymer synthesis and as phase transfer catalyst. Falls under HTS 2903.89.70.90 as unspecified halogenated cyclanic derivative, consistent with Chapter 29 scope for cyclic saturated chlorinated compounds.
Trichlorocyclohexene (Technical)
Technical trichlorocyclohexene contains primarily 1,2,4-trichlorocyclohexene used in chlorination reactions. Despite partial unsaturation, classifies under HTS 2903.89.70.90 as cyclenic halogenated hydrocarbon 'other' category, per heading structure distinguishing cyclanic/cyclenic from aromatic.