الرئيـسية - مبيدات الأعشاب
Name Of Product CAS NO. Specification MSDS
Foramsulfuron 173159-57-4 90%TC,2.5%SC

FORAMSULFURON

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Introduction: A selective post-emergence herbicide for broad-leaved weeds, perennial rye grass (lolium perenne), winter grass (poa annua), crowsfoot grass (eleusine indica) in corn, golf courses, lawns, athletic fields, recreational areas.

Common name: Foramsulfuron

Another name: UNII-4XJD212JQB, Option Corn Herbicide, etc.

Chemical name: 1-(4,6-dimethoxypyrimidin-2-yl)-3-[2-(dimethylcarbamoyl)-5-formamidophenylsulfonyl]urea

Empirical formula: C17H20N6O7S 

Structural formula:

Mol. Weight: 452.44 g/mol

CAS No.: 173159-57-4

Specifications

Leading Foramsulfuron supplier

Foramsulfuron 25 g/L SC

Foramsulfuron 90% TC

Packing:

BULK PACKING                                                     

Solid: 25kg/Bag, 25kg/Drum, 50kg/Drum etc.                    

Liquid: 200L/Drum, 20L/Drum, 10L/Drum ect.

SMALL PACKING

Solid: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc. 

Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc. 

Customerized packing label

Foramsulfuron FAO standard

Professional registration

HAZARDS IDENTIFICATION

Hazard statement(s)

H412 (100%): Harmful to aquatic life with long lasting effects.

Precautionary statement(s)

P273: Avoid release to the environment.

P501: Dispose of contents/container to ...

Supplemental Hazard Statements: none

MAMMALIAN TOXICOLOGY

Acute toxicity: 1) Acute oral LD50 for rat: >5000 a.i.mg/kg. 2) Acute dermal LD50 for rat: >2000 a.i.mg/kg. 3) Inhalation LC50 (4 h) for rat: >5.04 a.i.mg/L. 4)  Non-irritating to skin (rabbits). 5) Mildly-irritating to eye (rabbits). 6) Not a skin sensitiser (guinea pigs).

NOEL: NOAEL (90 d) for male rats is 20 000 ppm diet (849 mg/kg b.w. daily); (18 mo) for male mice is 8000 ppm diet (1115 mg/kg b.w. daily). Not mutagenic.    

ADI: 0.25 mg/kg b.w./day [Rat, SF=100]

Classification:

US EPA Classification (formulation): III (Caution - Slightly toxic)

EC Risk Classification: Xn - Harmful: R65; Xi - Irritant: R38; N - Dangerous for the environment: R50/53

ECOTOXICOLOGY

Effect on birds: low toxicity to birds, acute oral LD50 for Bobwhite quail is >2000 a.i.mg/kg. Effect on fish: low toxicity to fish, acute 96 hour LC50 for Rainbow trout is >100 a.i.mg/L. Effect on aquatic invertebrates: moderate toxicity to aquatic invertebrates, acute 48 hour EC50 for Daphnia magna is 100 a.i.mg/L. Effect on algae: low toxicity to algae, acute 72 hour EC50 for Pseudokirchneriella subcapitata is 75.0 a.i.mg/L. Effect on honeybees: low toxicity to honeybees, contact acute 48 hour LD50 is >100 a.i.g/bee, oral acute 48 hour LD50 is >110.1 a.i.g/bee. Effect on earthworms: moderate toxicity to earthworms, acute 14 day LC50 for Eisenia foetida is 453 a.i.mg/kg.

ENVIRONMENTAL FATE

Foramsulfuron's production may result in its release to the environment through various waste streams; its use as a herbicide will result in its direct release to the environment. If released to air, a vapor pressure of 3.1510-13 mm Hg at 20 deg C indicates foramsulfuron will exist solely in the particulate phase in the atmosphere. Particulate-phase foramsulfuron will be removed from the atmosphere by wet or dry deposition. If released to soil, foramsulfuron is expected to have very high mobility based upon an estimated Koc of 10. Sulfonylurea herbicides, such as foramsulfuron, are more mobile in alkaline soils and in soils with lower organic matter content. Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 5.710-17 atm-cu m/mole. Foramsulfuron aerobic soil half-lives have been reported as 40 days and 1.5 to 12.7 days. Foramsulfuron is stable to photolysis in soil and water. If released into water, foramsulfuron is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. An anaerobic aquatic biodegradation half-life is reported as 76 days. Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant. An estimated BCF of 3 suggests the potential for bioconcentration in aquatic organisms is low. Foramsulfuron has a reported hydrolysis half-life of 128 days at pH 7 and 20 deg C.   

Usage: Reported by B. Collins et al., (Proc. BCPC Conf. - Weeds, 2001, 1, 35). First synthesised in 1995 and under development by Aventis CropScience (now Bayer CropScience). Manufacturers: Bayer CropScience. Biochemistry: Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Selectivity in maize derives from more rapid metabolism. Isoxadifen-ethyl increases selectivity in maize by reducing translocation of parent foramsulfuron.

Application: Meristematic regions become chlorotic and necrotic, followed by general foliar chlorosis and necrosis; symptoms are visible within 48 h. Following foliar uptake, foramsulfuron is translocated throughout the plant, particularly to the meristematic regions. Post-emergence herbicide for grass (e.g. Echinochloa crus-galli, Setaria spp., Elytrigia repens, and Sorghum halepense) and broad-leaved weed control in maize; applied at 30-60 g/ha. When mixed with iodosulfuron-methyl-sodium (q.v.), the broad-leaved weed spectrum is enhanced, to include weeds such as Abutilon theophrasti, Chenopodium album, Xanthium strumarium, Ambrosia artemisiifolia, Ipomoea spp., Helianthus annuus and Cirsium arvense. The a.i. is usually used in combination with the safener isoxadifen-ethyl (q.v.).

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