N-(2,6-Dichloro-3-methylphenyl)-5-amino-1,3,4-triazole-2-sulfonamide from China
This complex triazole-sulfonamide is a herbicide development intermediate specifically named in HTS 2935.90.13.00. Used in synthesis of experimental sulfonylurea herbicides with enhanced crop selectivity. Research quantities typically imported for agrochemical R&D.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• EPA Experimental Use Permit (EUP) required for field testing quantities >10 acres
• Structure confirmation via 1H-NMR and 13C-NMR mandatory for R&D imports
• Small scale exemption (<2.5 acres) from full registration requirements