Other
Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated: > Other: > Other: > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2904.99.50.00
p-Toluenesulfonic Acid
p-Toluenesulfonic acid (PTSA) is a sulfonated derivative of toluene, a hydrocarbon, containing a sulfonic acid group (-SO3H) attached to the aromatic ring. It falls under HTS 2904.99.50.00 as a sulfonated derivative of hydrocarbons, whether or not halogenated, specifically in the 'other' category. Commonly used as a catalyst in organic synthesis and esterification reactions.
Benzenesulfonic Acid
Benzenesulfonic acid is the simplest aromatic sulfonic acid, derived from benzene hydrocarbon through sulfonation. Classified under HTS 2904.99.50.00 as a sulfonated derivative of hydrocarbons in the 'other' subcategory. Used in manufacturing detergents, dyes, and pharmaceuticals.
Dinonylnaphthalenesulfonic Acid
Dinonylnaphthalenesulfonic acid (DNNSA) features two nonyl alkyl chains on sulfonated naphthalene, qualifying as alkylated sulfonated hydrocarbon derivative under HTS 2904.99.50.00. Widely used in alkylation catalysts and metal extraction.
Xylenesulfonic Acid Mixture
Xylenesulfonic acid mixture contains isomers of dimethylbenzenesulfonic acid from sulfonation of commercial xylene feedstock. Falls under HTS 2904.99.50.00 as sulfonated derivatives not elsewhere specified. Used in hydrotropes and polymerization catalysts.
Camphorsulfonic Acid
10-Camphorsulfonic acid derives from sulfonation of camphor (bicyclic hydrocarbon terpene). Classified HTS 2904.99.50.00 as sulfonated cyclic hydrocarbon derivative. Chiral resolving agent in asymmetric synthesis.
Anthracene-2-Sulfonic Acid
Anthracene-2-sulfonic acid from sulfonation of anthracene polycyclic hydrocarbon. HTS 2904.99.50.00 covers this higher PAH sulfonated derivative. Used in specialty dye synthesis.
Dodecylbenzenesulfonic Acid
Linear dodecylbenzenesulfonic acid (LABSA) from sulfonation of dodecylbenzene alkylaromatic hydrocarbon. HTS 2904.99.50.00 classification for long-chain sulfonated derivatives. Primary raw material for LAS detergents.
Nitrophenylmethanesulfonic Acid
Nitrophenylmethanesulfonic acid features nitro group and -CH2SO3H on benzene ring from hydrocarbon sulfonation/nitration. Fits HTS 2904.99.50.00 as compound functionalized hydrocarbon derivative.
Tetradecylbenzenesulfonic Acid
Tetradecylbenzenesulfonic acid (C14 alkyl chain) from sulfonation of corresponding alkylbenzene. HTS 2904.99.50.00 for higher homologues. Used in heavy-duty cleaners.
Cumene Sulfonic Acid
Cumene sulfonic acid from isopropylbenzene sulfonation. HTS 2904.99.50.00 covers branched alkylaromatic sulfonates. Intermediate for dispersants.
Pseudocumene Sulfonic Acid
1,2,4-Trimethylbenzene sulfonic acid (pseudocumene derivative). HTS 2904.99.50.00 for polymethylbenzenesulfonates. Corrosion inhibitors.
Hexadecylbenzenesulfonic Acid
C16-Hexadecylbenzenesulfonic acid longest commercial alkylbenzene sulfonate. HTS 2904.99.50.00. Specialty lubricant additives.
Nitroisopropylbenzenesulfonic Acid
Nitro-substituted cumenesulfonic acid. Dual-functionalized hydrocarbon derivative HTS 2904.99.50.00. Pharma intermediates.
Naphthalene-2-Sulfonic Acid
Naphthalene-2-sulfonic acid results from sulfonation of naphthalene hydrocarbon at the 2-position, fitting HTS 2904.99.50.00 as other sulfonated hydrocarbon derivatives. Essential intermediate for dye manufacturing and as a wetting agent.
Nitrotoluenesulfonic Acid
Nitrotoluenesulfonic acid combines nitro (-NO2) and sulfonic acid groups on toluene hydrocarbon backbone, classified in HTS 2904.99.50.00 as other nitrated/sulfonated derivatives. Used in azo dye synthesis.