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Bensulfuron-methyl

Bensulfuron-methyl structure

CAS No:
83055-99-6
Formula:
C16H18N4O7S
Chemical Name:
Bensulfuron-methyl
Synonyms:
Benzoic acid,2-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]methyl]-,methyl ester;DPX-F 5384;Londax;Bensulfuron-methyl;F 5384;Mariner;DPX 84;Methyl 2-[(4,6-dimethoxypyrimidin-2-yl)ureidosulfonylmethyl]benzoate;Bianmihuanglong;Methyl 2-[[3-(4,6-dimethoxypyrimidin-2-yl)ureido]sulfonylmethyl]benzoate;Methyl α-((4,6-dimethoxypyrimidin-2-yl)ureidosulfonyl)-o-toluate;Methyl α-(4,6-dimethoxy pyrimidine-2-ylcarbamoylsulfamoyl)-O-toluate;96081-37-7;104466-83-3;110280-01-8
Categories:
Agrochemicals > Herbicides

Description

ChEBI: The methyl ester of bensulfuron. An acetolactate synthase inhibitor, it is used as a herbicide for the control of a variety of both annual and perennial weeds in crops, particularly wheat and rice. It is not licensed for use within the UK.

Bensulfuron-methyl is the methyl ester of bensulfuron. An acetolactate synthase inhibitor, it is used as a herbicide for the control of a variety of both annual and perennial weeds in crops, particularly wheat and rice. It is not licensed for use within the UK. It has a role as a herbicide, an agrochemical and an EC 2.2.1.6 (acetolactate synthase) inhibitor. It is a N-sulfonylurea, a member of pyrimidines, a methyl ester and an aromatic ether. It derives from a bensulfuron.

Bensulfuron-methyl Basic Attributes

Molecular Weight：

410.4

Exact Mass：

410.40

EC Number：

401-340-6

UNII：

QWL4I737BL

DSSTox ID：

DTXSID7024164

HScode：

29350090

Characteristics

PSA：

154

XLogP3：

2.38

Appearance：

White to pale yellow, odourless solid

Density：

1.4±0.1 g/cm3

Melting Point：

187 °C

Refractive Index：

1.591

Water Solubility：

2.92e-04 M

Storage Conditions：

0-6°C

Vapor Pressure：

2.10e-14 mmHg

Toxicity：

Oral-rat LD50: >5000 mg/kg; Oral-mouse LD50: >10985 mg/kg

Flammability characteristics：

Flammable; burning produces toxic nitrogen oxides and sulfur oxides

Safety Information

Transport codes：

UN30779/PG3

wgk germany：

hazard class code：

43-51/53

safety instructions：

2-24-37-61

RTECS Number：

DG8733000

Marks：

Xi;N,N,Xi

Storage features：

Warehouse ventilated, low temperature and dry

Stability/Shelf Life：

Stable at normal temperatures and storage conditions.

Precautionary statement(s)：

P273-P280

Hazard Statements：

H317-H411

GHS Classification：

|Warning|H317: May cause an allergic skin reaction [Warning Sensitization, Skin]|P261, P272, P273, P280, P302+P352, P321, P333+P313, P363, P391, and P501|H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]|Aggregated GHS information provided by 17 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Aggregated GHS information provided by 194 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Danger|H320: Causes eye irritation [Warning Serious eye damage/eye irritation]|P260, P261, P264, P270, P271, P273, P304+P340, P305+P351+P338, P312, P314, P337+P313, P391, P403+P233, P405, and P501

Toxicity

Toxicity class：

practically nontoxic

Mobility：

316.23 L/kg

Drug Information

MeSH Entry Terms：

2-((((((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)amino)sulfonyl)methyl)benzoic acid methyl ester

Bensulfuron-methyl Use and Manufacturing

Uses

Bensulfuron methyl is a selective systemic conductive herbicide in rice fields, also known as Nongdeshi, rice without grass, and farming. It has low toxicity to humans and animals and low toxicity to fish, birds and bees. Bensulfuron methyl was used to control sedge and broad-leaved weeds in rice fields, and has been used to control broad-leaved weeds in wheat fields. The medicament can be quickly diffused in the Water of Chemicalbook, absorbed by the weed roots and leaves and transferred to various parts, hindering the biosynthesis of branched-chain amino acids. It is used in rice fields to control annual and perennial broad-leaved weeds, sedge weeds, and has poor effects on gramineous weeds. It is safe for wheat, rice and other crops.

Agrochemical：

Bensulfuron-methyl has known environmental transformation products that include 2-amino-4,6-dimethoxypyrimidine.

Computed Properties

Molecular Weight:410.4
XLogP3:1.6
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:9
Rotatable Bond Count:8
Exact Mass:410.08962010
Monoisotopic Mass:410.08962010
Topological Polar Surface Area:154
Heavy Atom Count:28
Complexity:627
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Benzyl chloride

Toluene

Sodium hydroxide

Xylene

Sulfamic acid

Urea

Ammonia

Phosphorus trichloride

Sodium amide

o-Cresol

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