甲磺隆

Description

Sulfometuron-Methyl · CAS 74222-97-2 · C15H16N4O5S. UNII JLY5D60J1A. Melting Point: 202 °C; Melting Point: 397.4-401 °F; Solubility: In water, 244 mg/L at 25 °C.

Identification

CAS Registry Number	74222-97-2
PubChem CID	52997
Molecular formula	C15H16N4O5S
IUPAC name	methyl 2-[(4,6-dimethylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate
UNII (FDA)	JLY5D60J1A

Computed Descriptors

Molecular Weight	364.4
XLogP3	1.9
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	5
Exact Mass	364.08414080
Monoisotopic Mass	364.08414080
Topological Polar Surface Area	136
Heavy Atom Count	25
Formal Charge	0

Physical & Chemical Properties

Melting Point	202 °C
Melting Point	397.4-401 °F
Solubility	In water, 244 mg/L at 25 °C
Density	1.48 g/cu cm
Vapor Pressure	0.00006 [mmHg]
Vapor Pressure	5.48X10-16 mm Hg at 25 °C
LogP	log Kow = 1.20
LogP	1.3
Dissociation Constants	pKa = 5.2

Physical description & handling notes

• White solid;
• White solid.
• White solid
• In mg/kg at 25 °C: acetone 3300, acetonitrile 1800, ethyl acetate 650, diethyl ether 60, hexane <1, methanol 550, dichloromethane 15,000, dimethyl sulfoxide 32,000, octanol 140, toluene 240
• In water, pH 5 buffer 6.42 ppm; pH 7 buffer 244 ppm; pH 8.6 buffer 12,500 ppm
• When heated to decomposition it emites toxic fumes of /Nitrogen oxides and Sulfur oxides/.

Regulatory Status

GHS notification summary	3% (3 / 99)

GHS Hazard Classification

GHS notification summary	3% (3 / 99)
Reported hazard statements	H319 (28.3%), H332 (28.3%), H400 (97%), H410 (57.6%), H315, H320, H361, H373

Documented Uses

• Used as a non-crop herbicide (weed killer); [ACGIH]
• Controls many annual, biennial, and perennial grasses and annual broadleaf weeds growing in noncropland, and reforestation areas including certain conifers and hardwoods. Effective for control of johnsongrass. Gives contact and residual control; used alone and in combination with other residuals for nonselective use. Also recommended for selective weed control in bermudagrass, bahiagrass, crested wheatgrass, and smooth brome on noncrop sites.
• Sulfometuron methyl is a nonselective, sulfonyl urea herbicide. It is labeled for commercial pre and post-emergent applications to manage annual and perennial broadleaf weeds and grasses in non-agricultural sites (i.e., forestry, rights of way, non-crop industrial sites, and unimproved turf).
• Sulfometuron-methyl is produced by reaction of 2-sulfonylisocyanate methylbenzoate with 2-amino-4,6-dimethylpyrimidine.
• Preparation: G. Levitt, EP 7687; idem, US 4394506 (1980, 1983 both to Du Pont)
• Approximately 230,000 pounds of sulfometuron methyl are used per year according to the 2006 Screening Level Usage Analysis (SLUA). The heaviest use sites are forestry and rights of way use for roads and railroads.

Synonyms

sulfometuron-methyl; SULFOMETURON METHYL; 74222-97-2; OUST; DTXSID0034936; methyl 2-[(4,6-dimethylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate; JLY5D60J1A; DPX-5648; CHEBI:9348; DTXCID8014936; Benzoic acid, 2-(((((4,6-dimethyl-2-pyrimidinyl)amino)carbonyl)amino)sulfonyl)-, methyl ester; Benzoic acid, 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-, methyl ester; methyl 2-((4,6-dimethylpyrimidin-2-yl)carbamoylsulfamoyl)benzoate; RefChem:889579; 277-780-6; DPX-T5648

Frequently Asked Questions

What are the CAS number and molecular formula of Sulfometuron-Methyl?

CAS 74222-97-2; molecular formula C15H16N4O5S; molecular weight — g/mol.

What other names is Sulfometuron-Methyl known by?

sulfometuron-methyl, SULFOMETURON METHYL, 74222-97-2, OUST, DTXSID0034936, methyl 2-[(4,6-dimethylpyrimidin-2-yl)carbamoylsulfamoyl]benzoate.

Is Sulfometuron-Methyl classified as hazardous?

3% of GHS notifications report no hazard classification (3 of 99).

What are the key physical properties of Sulfometuron-Methyl?

Melting Point: 202 °C; Melting Point: 397.4-401 °F; Solubility: In water, 244 mg/L at 25 °C; Density: 1.48 g/cu cm.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.