Oxasulfuron
Synonym(s):Oxetan-3-yl 2-[(4,6-dimethylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate
- CAS NO.：144651-06-9
- Empirical Formula: C17H18N4O6S
- Molecular Weight: 406.41
- MDL number: MFCD00871602
- EINECS: 604-430-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:23:01
What is Oxasulfuron?
The Uses of Oxasulfuron
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.
Properties of Oxasulfuron
| 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 |
| form | neat |
| 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) |
Safety information for Oxasulfuron
| Signal word | Warning |
| Pictogram(s) |
 Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P314:Get medical advice/attention if you feel unwell. P391:Collect spillage. Hazardous to the aquatic environment P501:Dispose of contents/container to..… |
Computed Descriptors for Oxasulfuron
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