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2-(N,N-Diisopropylamino)ethanethiol

An organo-sulfur compound with isopropyl groups on the nitrogen atom, specifically 2-(N,N-diisopropylamino)ethanethiol. Classified under HTS 2930.90.92.22 due to its aminoethane-2-thiol structure with permitted isopropyl dialkyl substitution, excluded only dimethyl/diethyl forms. Commonly used in synthesis of thioether ligands and pharmaceutical precursors.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+108.8%112.5%
🇲🇽Mexico3.7%+106.3%110%
🇨🇦Canada3.7%+106.3%110%
🇩🇪GermanyFree+21.3%21.3%
🇯🇵JapanFree+23.8%23.8%

Alternative Classifications

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

2930.90.30.00Lower: 41.2% vs 112.5%

If sulfonated derivative rather than simple thiol

Sulfonated organo-sulfur compounds classified separately per Chapter 29 notes.

2920.90Lower: 16.2% vs 112.5%

If esterified thiol function present

Oxygen-function thiols with ester groups fall under heading 2920 per classification rules.

2942.00Lower: 16.2% vs 112.5%

If imported as a mixture of isomers including excluded forms

Mixtures of organic compounds classified in heading 2942 when not purely defined.

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

• Submit NMR or GC-MS spectra confirming isopropyl substitution to distinguish from excluded analogs

• Package with stabilizer if prone to oxidation; declare as UN2785 for hazardous thiol transport

• Verify not mixed with excluded isomers; pure compounds only qualify for this specific subheading

Related Products under HTS 2930.90.92.22