2-Anthracenesulfonic acid
Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated: > Derivatives containing only sulfo groups, their salts and ethyl esters: > 2-Anthracenesulfonic acid
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 2904.10.04.00
2-Anthracenesulfonic acid
2-Anthracenesulfonic acid is a sulfonated derivative of anthracene, a polycyclic aromatic hydrocarbon, containing only sulfo groups as required by HTS 2904. It is a chemically defined organic compound used primarily as an intermediate in dye synthesis and analytical chemistry. This classification falls under heading 2904 for sulfonated hydrocarbons without halogenation or other functional groups.
Sodium 2-Anthracenesulfonate
Sodium 2-anthracenesulfonate is the sodium salt of 2-anthracenesulfonic acid, classified with the parent acid per Chapter 29 note on inorganic salts of organic acids. It serves as a water-soluble intermediate for fluorescent dyes and surfactants. This fits HTS 2904.10.0400 as a derivative containing only sulfo groups.
Ethyl 2-Anthracenesulfonate
Ethyl 2-anthracenesulfonate is the ethyl ester of 2-anthracenesulfonic acid, explicitly covered under HTS 2904 for sulfo derivatives and their ethyl esters. Used in organic synthesis for protecting groups and dye precursors. Chapter notes confirm esters classify with the parent acid-function compound.
2-Anthracenesulfonic acid hydrate
2-Anthracenesulfonic acid hydrate is the parent compound dissolved in water as allowed under Chapter 29 note (d) for chemically defined products. It maintains classification in HTS 2904.10.0400 as a sulfonated hydrocarbon derivative. Commonly used in hydrated form for stability in lab applications.
Purified 2-Anthracenesulfonic acid (98% purity)
High-purity 2-anthracenesulfonic acid (98%) is a refined version of the sulfonated anthracene derivative, free of significant impurities per Chapter 29 scope. Classified under HTS 2904.10.0400 for its sulfo-only hydrocarbon structure. Ideal for precise analytical and synthetic uses.
2-Anthracenesulfonic acid with anticaking stabilizer
This form includes an anticaking agent necessary for preservation/transport, explicitly allowed under Chapter 29 note (f), retaining HTS 2904.10.0400 classification. The stabilizer does not alter its primary sulfo hydrocarbon nature. Used in industrial dye manufacturing.
Technical grade 2-Anthracenesulfonic acid
Technical grade 2-anthracenesulfonic acid contains minor impurities but remains a separate chemically defined compound under Chapter 29 note (a). It classifies in HTS 2904.10.0400 as the specified sulfo derivative of anthracene. Primarily for bulk dye production.
2-Anthracenesulfonic acid in transport solvent
Dissolved in solvent solely for safety/transport per note (e), this remains classified as 2-anthracenesulfonic acid under HTS 2904.10.0400. The solvent does not confer specific use suitability. Facilitates safe shipping for lab and industrial end-users.
2-Anthracenesulfonic acid with identification colorant
Added odoriferous substance for safety/identification per note (g), classifying under HTS 2904.10.0400 without changing its core sulfo derivative status. Enhances handling safety in dye synthesis facilities.
Research quantity 2-Anthracenesulfonic acid (lab pack)
Lab-packaged 2-anthracenesulfonic acid for research, still a pure chemically defined sulfonated hydrocarbon under HTS 2904.10.0400. Packaging doesn't alter classification as it's not retail-specific.
Industrial 2-Anthracenesulfonic acid drum pack
Bulk drum-packed for industrial dye production, classified as the pure sulfo derivative in HTS 2904.10.0400 per Chapter 29 scope.
2-Anthracenesulfonic acid for azo dye production
Specified for diluting to azo dye standards per note (h), remains in HTS 2904.10.0400 as precursor.
High-assay 2-Anthracenesulfonic acid (99.5%)
Ultra-pure grade for pharma intermediates, HTS 2904.10.0400.
Stabilized 2-Anthracenesulfonic acid powder
Powder with preservation stabilizer, note (f), HTS 2904.10.0400.