m-Benzenedisulfonic acid, sodium salt; 1,5-Naphthalenedisulfonic acid; andp-Toluenesulfonyl chloride
Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated: > Derivatives containing only sulfo groups, their salts and ethyl esters: > m-Benzenedisulfonic acid, sodium salt; 1,5-Naphthalenedisulfonic acid; andp-Toluenesulfonyl chloride
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 2904.10.10.00
m-Benzenedisulfonic Acid Sodium Salt
m-Benzenedisulfonic acid sodium salt is a sulfonated derivative of benzene with two sulfo groups and sodium counterions, explicitly listed under HTS 2904.10.10.00. It serves as an intermediate in dye manufacturing and chemical synthesis.
1,5-Naphthalenedisulfonic Acid
1,5-Naphthalenedisulfonic acid is a di-sulfonated naphthalene derivative explicitly provided for in HTS 2904.10.10.00 as a sulfonated hydrocarbon with only sulfo groups. It is widely used in the production of azo dyes and optical brighteners.
3,5-Naphthalenedisulfonic Acid
While not explicitly named, 3,5-naphthalenedisulfonic acid falls under HTS 2904.10.10.00 as a naphthalene derivative containing only sulfo groups, consistent with the heading's scope for disulfonic acids. Used in dye coupling and surfactant production.
TsCl 99% Pure for Synthesis
High purity p-toluenesulfonyl chloride (99%) for laboratory synthesis, classified under HTS 2904.10.10.00 as the specifically named sulfonated toluene derivative. Essential for alcohol and amine protection in pharmaceutical intermediates.
p-Toluenesulfonyl Chloride
p-Toluenesulfonyl chloride (TsCl) is a sulfonyl chloride derivative of toluene, specifically named in HTS 2904.10.10.00 as a sulfonated hydrocarbon derivative. It functions as a key protecting group reagent in organic synthesis.
Sodium m-Benzenedisulfonate Technical Grade
Technical grade sodium m-benzenedisulfonate is the sodium salt form of m-benzenedisulfonic acid, explicitly covered by HTS 2904.10.10.00 for sulfonated aromatic derivatives. Primarily used in wetting agents and dye intermediates.