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Oxasulfuron

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Oxasulfuron Basic information

Product Name:
Oxasulfuron
Synonyms:
  • oxasulfuron oxetan-3-yl 2-[(4,6-dimethylpyrimidin-2-yl)-carbamoylsulfamoyl]benzoate
  • Benzoic acid, 2-(((((4,6-dimethyl-2-pyrimidinyl)amino)carbonyl)amino)sulfonyl)-, 3-oxetanyl ester
  • Cga-277476 herbicide
  • Ep-A 0496701
  • Oxasulfuron [iso]
  • oxetan-3-yl 2-(N-((4,6-diMethylpyriMidin-2-yl)carbaMoyl)sulfaMoyl)benzoate
  • OXASULFURON
  • OXETAN-3-YL 2-[(4,6-DIMETHYLPYRIMIDIN-2-YL)CARBAMOYLSULFAMOYL]BENZOATE
CAS:
144651-06-9
MF:
C17H18N4O6S
MW:
406.41
EINECS:
604-430-5
Mol File:
144651-06-9.mol
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Oxasulfuron Chemical Properties

Melting point:
158°C (decomposition)
Density 
1.49±0.1 g/cm3(Predicted)
solubility 
Solubility in organic solvents (g/l at 25 °C)
Acetone 9.3
Ethyl acetate 2.3
Dichloromethane 69.0
n-Hexane 0.0022
Toluene 0.32
pka
Dissociation constant (pKa) 5.10
Water Solubility 
Solubility in water (g/l at 25 °C)
0.052 (pH 5.1)
0.063 (pH 5.0, buffer solution)
1.70 (pH 6.8, buffer solution)
19.0 (pH 7.8, buffer solution)
CAS DataBase Reference
144651-06-9(CAS DataBase Reference)
EPA Substance Registry System
Oxasulfuron (144651-06-9)
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Safety Information

Hazard Codes 
Xn;N,N,Xn
Risk Statements 
48/22-50/53
Safety Statements 
46-60-61
RIDADR 
UN 3077
WGK Germany 
3
HS Code 
29350090
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Oxasulfuron Usage And Synthesis

Uses

Oxasulfuron is used in liquid sulfonylurea herbicide composition.

Agricultural Uses

Oxasulfuron (CGA 277476) was launched in 1996 by Syngenta as a pre-emergent and post-emergent herbicide. At application rates of 66–92 g a.i. ha−1, it provides greater than 80% control of A theophrasti, X. strumarium, Amaranthus spp., A. artemisiifolia, A. trifida, Bidens pilosa, Cyperus esculentus, Polygonum pensylvanicum, Sorghum bicolor, E. crus‐galli, Helianthus annuus, Sesbania exaltata, and Ipomoea spp. in soybeans. The observed selectivity is due to the compound’s rapid metabolization in the target crop.

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