| Identification | More | [Name]
DPX-T5648 | [CAS]
74222-97-2 | [Synonyms]
2-(4,6-dimethylpyrimidin-2-ylcarbamoylsulfamoyl)benzoic acid methyl ester
DPX-T5648
METHYL 2(((((4,6-DIMETHYL-2-PYRIMIDINYL)-AMINO)CARBONYL)AMINO)SULFONYL)BENZOATE
Oust 75DF
OUST WEED KILLER(R)
sulfometuron-me
SULFOMETURON METHYL
SULFOMETURON METHYL ESTERoust
methyl 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulphonyl]benzoate
DPX-5648(DU Pont)
Oust(Du Pont)
| [EINECS(EC#)]
277-780-6 | [Molecular Formula]
C15H16N4O5S | [MDL Number]
MFCD00128060 | [Molecular Weight]
364.38 | [MOL File]
74222-97-2.mol |
| Chemical Properties | Back Directory | [Melting point ]
203-205°C | [Boiling point ]
197°C (rough estimate) | [density ]
1.48 | [refractive index ]
1.6000 (estimate) | [form ]
neat | [pka]
5.7(at 25℃) | [Henry's Law Constant]
8.2×1012 mol/(m3Pa) at 25℃, Armbrust (2000) | [Major Application]
agriculture
environmental | [InChI]
1S/C15H16N4O5S/c1-9-8-10(2)17-14(16-9)18-15(21)19-25(22,23)12-7-5-4-6-11(12)13(20)24-3/h4-8H,1-3H3,(H2,16,17,18,19,21) | [InChIKey]
ZDXMLEQEMNLCQG-UHFFFAOYSA-N | [SMILES]
COC(=O)c1ccccc1S(=O)(=O)NC(=O)Nc2nc(C)cc(C)n2 | [CAS DataBase Reference]
74222-97-2(CAS DataBase Reference) | [EPA Substance Registry System]
74222-97-2(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
N | [Risk Statements ]
R50:Very Toxic to aquatic organisms. | [Safety Statements ]
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN3077 9/PG 3 | [WGK Germany ]
2 | [RTECS ]
DG9096550 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Aquatic Acute 1 | [Hazardous Substances Data]
74222-97-2(Hazardous Substances Data) | [Toxicity]
LD50 in male, female rats (mg/kg): >5000, >5000 orally (Harding) |
| Hazard Information | Back Directory | [Description]
Sulfometuron-methyl is a herbicide. It has a moderate aqueous solubility, is non-volatile and, based on its chemical properties, is mobile and may be expected to leach to groundwater. It is not generally persistent in soil systems but may be persistent in aquatic systems under certain conditions. It has a low mammalian toxicity and has a high potential to bioaccumulate. It is moderately toxic to most aquatic species, honeybees and earthworms but is less toxic to birds. | [Chemical Properties]
The prodrug is white solid. m.p. 203～205℃, vapor pressure 7.39×10-14Pa, relative density 1.48. At 25℃, the solubility is: acetone 2.4g/kg, acetonitrile 1.5g/kg, ethanol 137mg/kg, ether 32mg/kg, xylene 37mg/kg, water 8mg/L (pH=5), 70mg/L (pH =7). The partition coefficient was 0.31 (pH=7). The hydrolysis half-life of the aqueous suspension was 18d at pH=5, and it was stable at pH=7-9. The half-life in soil was about 28d. | [Uses]
Metsulfuron-methyl is a sulfonylurea herbicide that inhibits the synthesis of branched-chain amino acids, thereby inhibiting cell division at the growing tips of plants, preventing the growth of weeds, and leading to chlorosis and necrosis. It is suitable for the control of annual and perennial grass weeds and broadleaf weeds in forestry. | [Definition]
ChEBI: Sulfometuron methyl is a benzoate ester that is the methyl ester of 2-{[(4,6-dimethylpyrimidin-2-yl)carbamoyl]sulfamoyl}benzoic acid. It has a role as a herbicide and an EC 2.2.1.6 (acetolactate synthase) inhibitor. It is a member of pyrimidines, a benzoate ester and a N-sulfonylurea. It is functionally related to a sulfometuron. | [Preparation]
Sulfometuron-methyl is produced by reaction of 2-sulfonylisocyanate methylbenzoate with 2-amino-4,6-dimethylpyrimidine. | [Agricultural Uses]
Herbicide: Used to control annual and perennial grasses and broadleaf
weeds on landscapes, rights-of-ways, fence rows, forests,
industrial structure areas and non-crop land. Not listed for use
in EU countries. Registered for use in the U.S. | [Trade name]
DPX-T5648®; KNOCKOUT®;
LANDMARK® MP (sulfometuron-methyl + chlorsulfuron);
OUST®; OUSTAR®; RIVERDALE®; STAMPRO® | [Mechanism of action]
Broad-spectrum and inhibits cell division. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS | [Environmental Fate]
Soil. In unsterilized soils, 58% of 14C-labeled sulfometuron-methyl degraded after 24
weeks. Metabolites identified were 2,3-dihydro-3-oxobenzisosulfonazole (saccharin),
methyl-2-(aminosulfonyl)benzoate, 2-aminosulfonyl benzoic acid, 2-(((aminocarbonyl)amino)sulfonyl)benzoate and [14C]carbon dioxide. The rate of degradation in aerobic
soils was primarily dependent upon pH and soil type (Anderson and Dulka, 1985). The
reported half-life in soil was approximately 4 weeks (Hartley and Kidd, 1987).
Chemical/Physical. Sulfometuron-methyl is stable in water at pH values of 7 to 9 but
is rapidly hydrolyzed at pH 5.0 forming methyl 2-(aminosulfonyl)benzoate and saccharin.
When sulfometuron-methyl in an aqueous solution was exposed to UV light (λ = 300–400
nm), it degraded to the intermediate methyl benzoate which then mineralized to carbon
dioxide (Harvey et al., 1985). The hydrolysis half-lives of metsulfuron-methyl at pH 5
and 25 and 45°C were 33 and 2.1 days, respectively. At pH 7 and 45°C, the hydrolysis
half-life is 33 days (Beyer et al., 1988). | [Metabolic pathway]
Sulfometuron methyl is relatively stable at neutral and
basic pH and undergoes cleavage of the sulfonylurea
linkage to yield methyl-2-(aminosulfonyl)benzoate and
4,6-dimethyl-2-aminopyrimidine as major hydrolysis
products, and saccharin as the terminal product.
These products are also observed as major
degradation products in soils. In plants,
monohydroxymethylsulfometuron methyl is the primary
metabolite which is also identified as a mammalian
and soil metabolite and undergoes further degradation
by mammals to give 2-amino-4-hydroxymethyl-6-
methylpyrimidine. | [Pesticide Type]
Herbicide |
|
| Company Name: |
J & K SCIENTIFIC LTD.
|
| Telephone: |
18210857532 18210857532 |
| Website: |
https://www.jkchemical.com |
| Company Name: |
China Langchem Inc.
|
| Telephone: |
0086-21-58956006 |
| Website: |
www.chemicalbook.com/ShowSupplierProductsList19141/0_EN.htm |
|