p-Toluenesulfonylhydrazide from Germany
p-Toluenesulfonylhydrazide (TSH) is an aromatic sulfonyl hydrazide with a tosyl group attached to hydrazine. Classified in HTS 2928.00.25.00 as an aromatic hydrazine derivative; sulfonated forms remain here unless organo-sulfur dominates per notes. Widely used as a foaming agent in plastics.
Duty Rate — Germany → United States
18.5%
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
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Classify as UN 2860 hazardous for air/sea transport
• Provide decomposition temperature data for storage declarations
• Distinguish from pure organo-sulfur by hydrazine parent structure