Halosulfuron Methyl Reference Standard from United States

Halosulfuron Methyl Reference Standard is a high-purity analytical standard (≥99.5%) used for method validation, residue analysis, and quality control in pesticide manufacturing. As a chemically defined sulfonylurea herbicide containing a sulfonamide group, it is classified under sulphonamides of heading 29.35. The reference standard form does not alter its chemical classification.