Chemical Name: 2-(2,2-difluoroethoxy)-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)-6-(trifluoromethyl)benzenesulfonamide

Formula: C₁₆H₁₄F₅N₅O₅S

Molecular weight: 483.373

CAS No.: 219714-96-2

Appearance: White powder

Relative Density(Specific Gravity): 1.61 g/cm³ at 20°C

Melting Point: 212°C

Vapour Pressure: 7.16×10^-16 mm Hg or 9.55×10^-14 Pa at 25°C

Specification: 98%TC,25g/l OF.

Uses: Penoxsulam is a new post-emergence, acetolactate synthase (ALS) inhibitor herbicide developed by Dow AgroSciences to be used as a foliar spray on dry-seeded rice crops, or as either a foliar spray or a granular formulation on water-seeded rice crops in order to control broadleaf weeds, aquatic plants, and certain grasses. Penoxsulam will be used on rice crops in the main rice growing regions of the United States oe the Gulf Coast, the lower Mississippi Valley, and central California. Penoxsulam comes in liquid and granular formulations. Foliar application is recommended for use of the liquid formulation of penoxsulam on both dry-and water-seeded crops. For water-seeded rice, the application practice is to lower the paddy water depth sufficiently to expose at least 50% of the target plant before spraying. The granular formulation of penoxsulam is only recommended for use on flooded paddies. Although rice paddies are typically constructed to limit the amount of water escaping into the open environment, penoxsulam can reach surface waters through spray drift and particulate drift during application, or by subsequent release of paddy water.