Dinonylnaphthalenesulfonic Acid
Dinonylnaphthalenesulfonic acid (DNNSA) is a branched alkyl naphthalene sulfonate used in oil additives and extractants. Falls under HTS 2904.99.47.00 as an aromatic sulfonated hydrocarbon derivative.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported specifically as formulated additive for lubricants
Additives with designated functions classify in 3811 regardless of chemical identity.
If naphthalene sulfonic acid without alkyl substitution
Unsubstituted naphthalene derivatives have earlier specific provisions.
If diluted with solvents for safe transport
Solvent-dissolved preparations per chapter note (e) may classify differently.
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Import Tips & Compliance
• Specify branching and carbon number (C9) in SDS to distinguish from linear alkylbenzene sulfonates
• TSCA reporting required if used in metal extraction processes
• Low volatility (BP >300°C) allows standard chemical packaging without special refrigeration
Related Products under HTS 2904.99.47.00
p-Toluenesulfonic Acid
p-Toluenesulfonic acid (PTSA) is a strong organic acid with the formula CH3C6H4SO3H, featuring a sulfonated aromatic hydrocarbon structure (toluene derivative). It falls under HTS 2904.99.47.00 as a sulfonated derivative of an aromatic hydrocarbon, used primarily as a catalyst in esterification and dehydration reactions.
Benzenesulfonic Acid
Benzenesulfonic acid is a sulfonated derivative of benzene (C6H5SO3H), a key intermediate in dye and detergent production. Classified under HTS 2904.99.47.00 as an 'other' aromatic sulfonated hydrocarbon derivative not specified elsewhere in heading 2904.
Nitrotoluene (Mixture of Isomers)
Nitrotoluene consists of ortho-, meta-, and para-nitrotoluene isomers (CH3C6H4NO2), nitrated derivatives of toluene. Falls under HTS 2904.99.47.00 as aromatic nitrated hydrocarbons, used in explosives, dyes, and pharmaceutical intermediates.
Dodecylbenzenesulfonic Acid
Dodecylbenzenesulfonic acid (DDBSA) is an alkylbenzene sulfonated derivative used as a surfactant in detergents. Classified in HTS 2904.99.47.00 as a sulfonated aromatic hydrocarbon, whether halogenated or not, covering alkyl chain variants.
2,4-Dinitrotoluene
2,4-Dinitrotoluene (2,4-DNT) is a dinitrated toluene derivative used in polyurethane production and as explosive intermediate. It qualifies under HTS 2904.99.47.00 as a nitrated aromatic hydrocarbon derivative.
Nitrobenzene
Nitrobenzene (C6H5NO2) is the simplest nitrated aromatic hydrocarbon, used in aniline production and as solvent. Classified under HTS 2904.99.47.00 as an 'other' nitrated aromatic hydrocarbon.