Normal Dodecylbenzene (n-DDB)
Normal dodecylbenzene is a straight-chain alkylbenzene (C6H5-C12H25) used exclusively as a feedstock for manufacturing biodegradable detergent surfactants. Classified under HTS 2902.90.30.10 per Chapter 29 notes for pure, separate alkylbenzenes. Excludes sulfonated forms which shift to Chapter 34.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purity <80% with heavy petroleum distillates
Petroleum-derived mixtures with significant non-aromatic content classify under Chapter 27 per chapter note exclusions.
If shorter alkyl chain (C10-C11)
Alkylbenzenes with chain lengths below C12 fall under the mixed alkylbenzene provision earlier in numerical order.
If contains mixed catalyst residues
HF-alkylation process residues may trigger classification as mixed industrial chemical preparations.
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Import Tips & Compliance
• Declare exact carbon chain distribution (n-C12 >90%) via chromatograms to distinguish from branched isomers
• Bulk liquid imports require proper UN-approved IBCs/ISO tanks with proper placarding for Combustible Liquid Class III
• EPA PMN notification may be required if impurities exceed TSCA Inventory limits
Related Products under HTS 2902.90.30.10
Linear Dodecylbenzene (LDB)
Linear dodecylbenzene is a chemically defined organic compound consisting of a benzene ring alkylated with a straight-chain C12 hydrocarbon group. It falls under HTS 2902.90.30.10 as an alkylbenzene used primarily as an intermediate in producing linear alkylbenzene sulfonates (LAS) for detergents. The chapter notes confirm classification for separate chemically defined cyclic hydrocarbons with alkyl substituents.
Technical Grade Dodecylbenzene 98%
Technical grade dodecylbenzene at 98% purity, primarily linear C12-benzene, serves as direct precursor for sulfonation in household detergent production. HTS 2902.90.30.10 applies as it meets Chapter 29 criteria for chemically defined alkylbenzenes with impurities not affecting principal characteristics.
LAB-120 Dodecylbenzene
LAB-120 is a commercial linear dodecylbenzene grade with average C12 chain length, optimized for high-yield sulfonation in powder laundry detergents. Classifies under 2902.90.30.10 as pure alkylbenzene per Chapter 29 note (a), excluding formulated mixtures.
DDB for Detergent Manufacture
Industrial dodecylbenzene specifically produced via HF-alkylation for conversion to dodecylbenzene sulfonic acid (DDBSA). Meets HTS 2902.90.30.10 as chemically defined alkylbenzene; chapter notes exclude sulfonated derivatives.