Triasulfuron manufacturers and suppliers

Triasulfuron suppliers

Properties

Melting point:: 178°C

Boiling point:: 150-260 °C

Density: 1.5218 (rough estimate)

vapor pressure: 0Pa at 25℃

refractive index: 1.5630 (estimate)

storage temp.: 0-6°C

solubility: DMSO (Slightly), Methanol (Slightly, Heated)

pka: 4.34±0.10(Predicted)

BRN: 7151883

LogP: 1.6-2.6 at 25℃ and pH5-9

Dissociation constant: 4.64 at 20℃

Safety Information

Symbol(GHS): GHS07,GHS09

Signal word: Warning

Hazard statements: H332-H410

Precautionary statements: P261-P271-P273-P304+P340+P312-P391-P501

Hazard Codes: N

Risk Statements: 50/53

Safety Statements: 60-61

RIDADR: UN3077 9/PG 3

WGK Germany: 2

RTECS: DB1554000

HS Code: 29350090

Toxicity: LD50 in rats (mg/kg): >5000 orally; >2000 dermally; LC50 (4 hr) in rats: >5185 mg/m3 by inhalation (Amrein, Gerber)

Use

Triasulfuron undergoes hydrolytic degradation, especially under acidic conditions, giving rise to cleavage of the sulfonylurea linkage, producing the major products 2-(2-chloroethoxy)benzenesulfonamide and 4-methyl-6-methoxy-2-amino-1,3,5-triazine and the minor product acetyltriuret. In plants, hydroxylation occurs at the 5-position of the phenyl ring to yield 5- hydroxytriasulfuron as a primary metabolite which is a major metabolite from the plant microsomal system.By mammals, orally administered triasulfuron is mainly excreted in the urine, and O-dealkylation of 2- chloroethoxy and 6-methoxy groups, and hydroxylation at the 5-position of the phenyl ring and at the 4-methyl group of the triazine ring are observed. By UV irradiation, 2-chloroethoxybenzene is interestingly identified with (4-methoxyl-6-methyl-1,3,5-triazine)urea, and, in sunlight, with these two products, 2-amino-4- methoxyl-6-methyltriazine and 2-(2- chloroethoxy)benzenesulfonamide are identified.

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