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Римсульфурон
Rimsulfuron

Herbicide

HRAC B WSSA 2; sulfonylurea

 

Rimsulfuron 95%TC
Трибенурон 25%WG
Rimsulfuron 50% + Thifensulfuron 25% WG

NOMENCLATURE

Common namerimsulfuron (BSI, pa E-ISO, ANSI)

IUPAC name1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-ethylsulfonyl-2-pyridylsulfonyl)urea

Chemical Abstracts nameN-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-3-(ethylsulfonyl)-2-pyridinesulfonamide

CAS RN[122931-48-0]Development codesDPX-E9636 (Du Pont)

Римсульфурон PHYSICAL CHEMISTRY

CompositionTech. is 99%.Mol. wt.431.4M.f.C14H17N5O7S2FormColourless crystals.M.p.176-178 ºCV.p.1.5 ´ 10-3mPa (25 ºC)KOWlogP = 0.288 (pH 5), -1.47 (pH 7) (25 ºC)S.g./density0.784 (25 ºC)SolubilityIn water (25 ºC) <10 mg/l (unbuffered); 7.3 g/l (buffered, pH 7).StabilityOn hydrolysis (25 ºC), DT504.6 d (pH 5), 7.2 d (pH 7), 0.3 d (pH 9).pKa4.0

Римсульфурон COMMERCIALISATION

HistoryHerbicide reported by H. L. Palm et al. (Proc. 1989 Br. Crop Prot. Conf. - Weeds,1, 23). Introduced by E. I. du Pont de Nemours and Co. and first marketed in Europe in 1991.ManufacturersDu Pont