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
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If aliphatic sulfonic acids
Absence of aromatic ring shifts to non-aromatic derivatives subheading.
If stearic acid derivatives with sulfo modification
Long-chain modifications create different oxygen-function compounds.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
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
Related Products under HTS 2904.10.32.00
Sodium Dodecylbenzenesulfonate
Sodium dodecylbenzenesulfonate is an anionic surfactant with a sulfonated aromatic hydrocarbon structure, classified under HTS 2904.10.32.00 as an aromatic derivative containing only sulfo groups. It is commonly used in detergents and cleaning formulations for its emulsifying properties.
Linear Alkylbenzene Sulfonic Acid (LABSA)
LABSA is a sulfonic acid derived from linear alkylbenzenes, featuring a single sulfo group on an aromatic ring, fitting HTS 2904.10.32.00 criteria. It's a key intermediate for producing biodegradable detergents and emulsifiers.
Sodium Xylenesulfonate
Sodium xylenesulfonate is a hydrotrope salt of xylene sulfonic acid, an aromatic sulfonate covered by HTS 2904.10.32.00. It enhances solubility in liquid detergents and cleaning products.
Cumene Sulfonic Acid Sodium Salt
This sodium salt of cumene sulfonic acid is an aromatic sulfonate with isopropyl substitution, classified in HTS 2904.10.32.00 per section VI note 3. Applied in hydrotropic formulations for cleaners.
Dodecylbenzene Sulfonic Acid
Dodecylbenzene sulfonic acid (DDBSA) is a branched alkyl aromatic sulfonic acid under HTS 2904.10.32.00. Essential raw material for high-foaming detergent production.
Sodium Toluenesulfonate
Sodium p-toluenesulfonate is the salt form of toluenesulfonic acid, an aromatic sulfonate in HTS 2904.10.32.00. Functions as hydrotrope and polymerization stabilizer.