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Toluene Sulfonic Acid (TsOH)

P-toluenesulfonic acid monohydrate is a strong organic acid with a methyl-substituted aromatic sulfonate, qualifying under HTS 2904.10.32.00. Used as catalyst in esterification and resin synthesis.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+37.5%43%
🇲🇽Mexico5.5%+10.0%15.5%
🇨🇦Canada5.5%+10.0%15.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2904.10Same rate: 43%

If aliphatic sulfonic acids

Absence of aromatic ring shifts to non-aromatic derivatives subheading.

2915.70.01Lower: 42.5% vs 43%

If stearic acid derivatives with sulfo modification

Long-chain modifications create different oxygen-function compounds.

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Import Tips & Compliance

Specify monohydrate form; anhydrous may have different specifications

Provide REACH/TSCA dossiers for industrial chemical import

Handle as corrosive solid; ensure UN 3261 packaging compliance