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Nicosulfuron
Common
Name£ºNicosulfuron
Chemical Name:
¡¡¡¡2-[[[[(4,6-dimethoxy-2-pyrimidiny)amino]carbonyl]amino]sulfonyl]
-N,N-dimethyl-3-pyridinecarboxamide
Chemical Structure:
¡¡¡¡ 
CAS NO.:111991-09-4
Specification£º95% min
Physical & Chemical Properties£º(technical)
¡¡¡¡Mol. wt. 410.4 M.f. C15H18N6O6S
¡¡¡¡Form Colourless crystals. M.p. 169-172¡æ V.p. < 8¡Á10£7 mPa
(25¡æ) KowlogP= £0.36(pH 5), £1.8 (pH 7), £2(pH 9) S.g./density
0.313(bulk) Solubility In water 0.07g/l. In acetone 18, ethanol 4.5,
chloroform, dimethylformamide 64, acetonitrile 23, toluene 0.370,
hexane <0.02, dichloromethane 160 (all in g/kg,25¡æ). Stability
Hydrolysis DT50 15 d (pH 5); stable at pH 7&9.
Mode of Action:
¡¡¡¡A systemic selective sulfonylurea herbicide.It controls weeds by
inhibiting the plant enzyme acetolactate synthase(ALS).
Toxicity:
¡¡¡¡Acute oral LD50(Rat)>5000mg/kg, dermal LD50(Rabbit)>2000mg/kg.
Inhalation LC50(Rat):5.47mg/L. It has slightly irritation
to the eyes.
Formulation: 4%SC,70%WP,70%WDG,75%WP,75%DF,75%WDG
Package:Packed in 25kg drum |
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