2904.99.50.00/p-Toluenesulfonic Acid/Germany

p-Toluenesulfonic Acid from Germany

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.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Provide detailed chemical analysis (NMR, IR spectra) confirming sulfonation on hydrocarbon base structure to verify Chapter 29 classification

• Include Material Safety Data Sheets (MSDS) and UN shipping declarations for corrosive properties during customs clearance

• Ensure proper labeling as hazardous material (UN 3261) to avoid delays; verify purity levels as impurities may affect duty rates