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
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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