Foramsulfuron Property

Melting point:

199.5°

Density 

1.471±0.06 g/cm3(Predicted)

vapor pressure 

4.2 × 10-11 1.3 × 10-10a (Pa at 20 °C)

storage temp. 

Sealed in dry,2-8°C

solubility 

Solubility in organic solvents (g/l at 20 °C)
Acetone 1.925
Acetonitrile 1.111
1,2-Dichloroethane 0.185
Ethyl acetate 0.362
n-Heptane <0.010
Methanol 1.660
p-Xylene <0.010

pka

Dissociation constant (pKa at 21.5 °C) 4.6

color 

White

Water Solubility 

Solubility in water (g/l at 20 °C) 0.037 (pH 5) 3.293 (pH 7) 94.577 (pH 8)

EPA Substance Registry System

Foramsulfuron (173159-57-4)

Safety

RIDADR 

UN3077(solid)

WGK Germany 

1

HS Code 

29242990

Hazardous Substances Data

173159-57-4(Hazardous Substances Data)

Toxicity

LD50 in rats (mg/kg): >5000 orally; >2000 dermally (Collins)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

Foramsulfuron Chemical Properties,Usage,Production

Uses

Foramsulfuron is used in weed control practises in reduced tillage production. It also functions as a new herbicide with ALS-inhibiting active ingredient for the control of troublesome weeds in sugar beet.

Uses

Herbicide.

Definition

ChEBI: A member of the class of benzamides that is N,N-dimethylbenzamide substituted by a formylamino group at position 4 and a [(4,6-dimethoxypyrimidin-2-yl)carbamoyl]sulfamoyl group at position 2.

Agricultural Uses

Herbicide: Used on athletic fields and recreational areas, including golf courses (for turf), lawns, etc. Used on corn. An acetolactate syntheses inhibitor.

Agricultural Uses

Foramsulfuron (AE F130360) is a post-emergence sulfonylurea herbicide used for the control of major grass species and certain broadleaf weeds in maize. It is applied with the safener isoxadifen‐ethyl (AE F122006) and in some products in combination with small quantities iodosulfuron-methyl-sodium.
Introduced in 2001 and subsequently commercialized by Bayer CropScience, the three‐way mixture of foramsulfuron with iodosulfuron-methyl-sodium and isoxadifen-ethyl is used for post‐emergent weed control in maize. Foramsulfuron, at a dose rate of 30–45 g a.i. ha−1, offers a minimum of 90% weed control on most grassy weeds, such as E. crus-galli, Setaria spp., Agropyron repens, A. spica‐venti, A. myosuroides, L. multiflorum, Panicum dichotomiflorum, P. annua, and Sorghum halepense, and a wide selection of broadleaf weed species, such as A. theophrasti, Amaranthus spp., Galinsoga parviflora, L. purpureum, S. nigrum, and S. media. The addition of 1–2 g a.i. ha−1 of iodosulfuron-methyl-sodium improves the level of weed control on broadleaf weed species, including C. album, G. aparine, Fallopia convolvulus, Ipomoea spp., P. aviculare, P. lapathifolium, S. arvensis, and Xanthium strumarium.
The basis of selectivity of foramsulfuron in the presence of the safener isoxadifen-ethyl is a more rapid rate of metabolic detoxification in maize compared with target weeds, in which little or no degradation of the parent sulfonylurea occurs. Three main routes of metabolism have been established in maize: a hydrolytic cleavage of the sulfonylurea bridge, a deformylation of the amino group, and oxidative metabolism of the dimethoxypyrimidine ring.
Foramsulfuron is commercialized with the safener isoxadifen-ethyl under the trade names “Option®” and “Equip®,” whereas in combination with iodosulfuron-methyl-sodium, the ternary mixture is sold as “MaisTer®,” “Mester®,” “Fortuna®” or “Equip Plus,” and “Option 360”. The combination of the two herbicides probably makes “MaisTer” and “Mester” the widest-spectrum maize herbicides used in Europe today.

Trade name

Bayer AE-F130360®