Benzenesulfonyl Hydrazide from Japan
Benzenesulfonyl hydrazide is a sulfonamide derivative explicitly named in HTS 2935.90.10.00, consisting of a benzene ring linked to a sulfonyl hydrazide group. Classified here as a specific organic compound of Chapter 29 rather than general organo-sulfur compounds. Widely used as a foaming agent in plastics and rubber production.
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
• Include end-use statements distinguishing industrial chemical applications from pharmaceutical intermediates
• Verify CAS number (80-17-1) matches import documentation to confirm tariff-specific classification
• Check for anti-dumping duties; declare exact purity levels to avoid reclassification as mixtures