New

Ask Wove anything about tariffs.

Try Tariff Assistant

Thiophenol from Japan

Thiophenol is an aromatic organo-sulfur compound with the formula C6H5SH, featuring a phenyl ring directly bonded to a thiol group (-SH). It falls under HTS 2930.90.2900 as an aromatic organo-sulfur compound not specifically provided for elsewhere in heading 2930. This chemical is used in organic synthesis and as a reagent in pharmaceutical manufacturing.

Duty Rate — Japan → United States

21%

Rate breakdown

9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Import Tips

• Provide detailed chemical analysis (NMR, MS) confirming aromatic structure and sulfur directly linked to carbon to avoid misclassification

• Include Safety Data Sheet (SDS) and purity certificate; thiophenol is hazardous and requires proper hazmat documentation

• Verify not sulfonated/halogenated derivatives, as those shift to earlier 2930 subheadings per chapter notes