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Bensulfuron methyl

CAS No.83055-99-6
Chemical Name:Bensulfuron methyl
CBNumber:CB2680057
Molecular Formula:C16H18N4O7S
Formula Weight:410.4
MOL File:83055-99-6.mol

Bensulfuron methyl Property

Melting point 185-188°C
Density 1.4087 (rough estimate)
refractive index 1.6000 (estimate)
storage temp. 0-6°C
solubility Acetonitrile (Slightly), Dichloromethane (Slightly), DMSO (Slightly)
form Solid
pka 12.34±0.70(Predicted)
color White to pale yellow
Odor odorless solid
BRN 7447488
Stability Moisture Sensitive, Unstable in Solution
InChIKey XMQFTWRPUQYINF-UHFFFAOYSA-N
CAS DataBase Reference 83055-99-6
EWG's Food Scores 1-2
FDA UNII QWL4I737BL
Pesticides Freedom of Information Act (FOIA) Bensulfuron-methyl
EPA Substance Registry System Bensulfuron-methyl (83055-99-6)
UNSPSC Code 41116107
NACRES NA.24

Safety

Hazard Codes :Xi;N,N,Xi
Risk Statements :43-51/53
Safety Statements :2-24-37-61
RIDADR :UN 3077 9/PG 3
WGK Germany :2
RTECS :DG8733000
HS Code :29350090
Toxicity :LD50 orl-rat: >5 g/kg NNGADV 16,343,91

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H317-H410
Precautionary statements P261-P272-P273-P280-P302+P352-P333+P313

Bensulfuron methyl Price More Price(1)

Brand: Sigma-Aldrich(India)
Product number: 37897
Product name : Bensulfuron-methyl
Purity: PESTANAL?, analytical standard
Packaging: 100MG
Price: ₹10695.1
Updated: 2022/06/14
Buy: Buy

Bensulfuron methyl Chemical Properties,Usage,Production

Description Bensulfuron-methyl (BSM) is a new kind of sulfonylurea herbicide widely used to control various weeds and sedges. It is moderately soluble in water, non-volatile and moderately mobile. It would not be expected to persistent in soil but could be persistent in water systems under certain conditions. It is not highly toxic to mammals. It also shows a low toxicity to birds and earthworms but is more of a concern to aquatic plants, algae and honeybees.
Uses Bensulfuron methyl (BSM) was the first sulfonylurea herbicide commercialized for use in rice, and it remains the dominant sulfonylurea for broadleaf and sedge weed control in this crop.
Definition ChEBI: 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.
Safety Profile Moderately toxic by ingestion.When heated to decomposition it emits toxic vapors ofNOx and SOx.
Metabolic pathway Bensulfuron methyl is metabolized by mammals and birds and the major metabolites identified include mono-O-demethylated and 5-hydroxylated bensulfuron methyl and 5-hydroxy-2-amino-3,5- dimethoxypyrimidine. As bird metabolites, cleavage of the pyrimidine ring of bensulfuron methyl is observed which results in two pyrimidine ring-opening metabolites. In rice plants, bensulfuron methyl undergoes rapid O-demethylation at one of the methoxy groups on the pyrimidine ring which will proceed through hydroxylation at the methyl group. Alcoholysis and hydrolysis of bensulfuron methyl (H1) involve mainly the breakdown of the urea moiety which leads to several degradation products, some of which are also identified as metabolites in mammals and plants.