2935.90.13.00/N-(2,6-Dichloro-3-methylphenyl)-5-amino-1,3,4-triazole-2-sulfonamide/Mexico

N-(2,6-Dichloro-3-methylphenyl)-5-amino-1,3,4-triazole-2-sulfonamide from Mexico

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 — Mexico → United States

100%

Rate breakdown

9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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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