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Orthosulfamuron

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Orthosulfamuron Basic information
Orthosulfamuron Chemical Properties
  • Melting point:160–162°C
  • Density 1.466±0.06 g/cm3(Predicted)
  • vapor pressure <1.1 × 10-4 (Pa at 25 °C)
  • solubility Solubility in organic solvents (g/l at 20 °C)
    Acetone 20
    Ethyl acetate 3.3
    Dichloromethane 56
    n‐Heptane 0.00023
    Methanol 8.3
    Xylene 0.13
  • pkaDissociation constant (pKa at 20 °C) Predicted to have five overlapping dissociation constants: ?1.4, 0.7, 3.5, 9.6, 11.5
  • form neat
  • Water Solubility Solubility in water (g/l at 20 °C) 0.026 (pH 4, buffer) 0.63 (pH 7, buffer) 39 (pH 8.5, buffer)
  • BRN 11343666
  • EPA Substance Registry SystemBenzamide, 2-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]amino]-N,N-dimethyl- (213464-77-8)
Safety Information
  • WGK Germany 3
Orthosulfamuron Usage And Synthesis
  • Agricultural UsesOrthosulfamuron (IR‐5878, CAS no.: 213464-77-8) is a broad‐spectrum pre‐ and post‐emergent rice herbicide developed by Isagro for the control of annual broadleaf and sedge weeds. It was sold in 2013 to Nihon Nohyaku Co., Ltd. and can be used also for sugarcane ripening.
    The compound has been marketed since 2007 under the trade names “Kelion® 50 WG,” “Strada® WG,” and “Pivot® 50 WG” for early and middle post‐emergence application against susceptible weeds and sedges, such as A. theophrasti, Alisma plantago‐aquatica, A. lanceolatum, C. difformis, C. serotinus, Cyperus ferax, Cyperus iria, E. crus‐galli (red biotype), Heteranthera reniformis, Heteranthera rotundifolia, H. limosa, L. dubia, Schoenoplectus mucronatus, Bolboschoenus maritimus, Sagittaria sagittifolia, and Scirpus supinus at a use rate of 40–75 g a.i. ha−1.
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