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Tetrabutylammonium Bromide (TBAB)

Tetrabutylammonium bromide (TBAB) is a quaternary ammonium salt used as a phase-transfer catalyst. It is a separate chemically defined organic compound under heading 29.23.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

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

3824.99.00Same rate: Free

If the product is a mixture with other catalysts

Mixed chemical products not separately defined are classified in heading 38.24.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Verify the product is pure and not a solution in an organic solvent

• Keep the chemical safety data sheet for CBSA clearance