- METOXURON
-
- $1.00
-
2020-01-01
- CAS:19937-59-8
- Min. Order: 1KG
- Purity: 95-99%
- Supply Ability: 1ton
|
| | METOXURON Basic information |
| | METOXURON Chemical Properties |
| Melting point | 124-127 °C | | Boiling point | 391.6±42.0 °C(Predicted) | | density | 1.3100 (rough estimate) | | refractive index | 1.5500 (estimate) | | Fp | 2 °C | | storage temp. | APPROX 4°C | | solubility | Chloroform (Slightly), DMSO (Slightly) | | pka | 13.83±0.70(Predicted) | | form | Solid | | color | White to Off-White | | Water Solubility | 678mg/L(23 ºC) | | Henry's Law Constant | 6.9×102 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) | | Major Application | agriculture
environmental | | InChI | 1S/C10H13ClN2O2/c1-13(2)10(14)12-7-4-5-9(15-3)8(11)6-7/h4-6H,1-3H3,(H,12,14) | | InChIKey | DSRNRYQBBJQVCW-UHFFFAOYSA-N | | SMILES | COc1ccc(NC(=O)N(C)C)cc1Cl | | EPA Substance Registry System | Metoxuron (19937-59-8) |
| Hazard Codes | N,Xn,F | | Risk Statements | 50/53-36-20/21/22-11 | | Safety Statements | 60-61-36-26-16-36/37 | | RIDADR | UN3077 9/PG 3 | | WGK Germany | WGK 2 | | RTECS | YS5775000 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Acute Tox. 4 Oral
Aquatic Acute 1
Aquatic Chronic 1 | | Toxicity | mouse,LD50,oral,2542mg/kg (2542mg/kg),ENDOCRINE: OTHER CHANGESBLOOD: OTHER CHANGES,Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 47(2), Pg. 13, 1982. |
| | METOXURON Usage And Synthesis |
| Uses | Metoxuron is used as a herbicide. | | Definition | ChEBI: Metoxuron is a member of the class of 3-(3,4-substituted-phenyl)-1,1-dimethylureas that is urea in which one of the nitrogens is substituted by a 3-chloro-4-methoxyphenyl group while the other is substituted by two methyl groups. It is a plant growth regulator and a pre- and post-emergence herbicide used for the control of grasses and broad-leaved weeds in carrots and cereals (e.g. wheat, barley and rye). It has a role as an agrochemical, an environmental contaminant, a herbicide, a xenobiotic, a photosystem-II inhibitor and a plant growth regulator. It is a 3-(3,4-substituted-phenyl)-1,1-dimethylurea, a monomethoxybenzene and a member of monochlorobenzenes. | | Production Methods | The industrial synthesis of metoxuron begins with the preparation of 3-chloroaniline, which serves as the aromatic base. This compound undergoes condensation with dimethylcarbamoyl chloride or similar methylurea precursors to form the substituted urea backbone. The methoxy group is introduced via methylation of the urea nitrogen using agents like methyl iodide or dimethyl sulphate. The reactions are typically carried out in organic solvents such as acetone or toluene, under controlled temperature and pH conditions to ensure high yield and purity. | | Mechanism of action | Selective with contact and residual action. Photosynthetic electron transport inhibitor at the photosystem II. | | Metabolic pathway | Photodegradation of metoxuron with UV irradiation in
the presence of UV-H2O2 and -TiO2 primarily proceeds
with the replacement of the chlorine atom with the
hydroxy group and the attack of OH radicals at the
6-position on the phenyl ring. The principal
photoproducts identified are 3-(4-methoxy-2,5-
paraquinone)-1,1-dimethylurea, hydroxymetoxuron,
3-(3-hydroxy-4-methoxyphenyl)-1,1-dimethylurea,
3-(3-chloro-4-hydroxyphenyl)-1,1-dimethylurea, and
3-(3-chloro-4-methoxyphenyl)-1,1dimethylurea. | | Pesticide Type | Herbicide |
| | METOXURON Preparation Products And Raw materials |
|