Toluene Sulfonic Acid Monohydrate from Germany
Para-toluene sulfonic acid monohydrate contains only sulfo groups on toluene hydrocarbon backbone. Fits HTS 2904.10.5000 as sulfonated hydrocarbon derivative. Used as catalyst in esterification and polymerization reactions.
Duty Rate — Germany → United States
14.2%
Rate breakdown
9903.03.0110%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
Import Tips
• Specify ortho/para isomer ratio; pure p-TSA vs mixed isomers affect pricing and classification
• Monohydrate status must be confirmed (<1.5% water distinguishes from anhydrous form)
• Avoid declaring as 'aromatic sulfonic acid' without hydrocarbon parent specification