Rimsulfuron

Common name rimsulfuron (BSI, pa E-ISO, ANSI)

IUPAC name 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-ethylsulfonyl-2-pyridylsulfonyl)urea 

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

CAS RN [122931-48-0]

Composition Tech. is 99%. 

Mol. wt. 431.4 

M.f. C14H17N5O7S2 

Form Colourless crystals. 

M.p. 172-173 癈 (purity >98%) 

V.p. 1.5 ´ 10-3 mPa (25 篊) 

KOW logP = 0.288 (pH 5), -1.47 (pH 7) (25 篊) 

S.g./density 0.784 (25 篊) 

Solubility In water (25 篊) <10 mg/l (unbuffered); 7.3 g/l (buffered, pH 7). 

Mode of action

Selective systemic herbicide, absorbed by the foliage and roots, with rapid translocation to the meristematic tissues. 

Uses Rimsulfuron is a post-emergence sulfonylurea herbicide that effectively controls most annual and perennial grasses and several broad-leaved weeds in maize.