p-Toluenesulfonylhydrazide from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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