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ChemicalBook--->CAS DataBase List--->114311-32-9

114311-32-9

114311-32-9 Structure

114311-32-9 Structure
IdentificationMore
[Name]

Imazamox
[CAS]

114311-32-9
[Synonyms]

2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1h-imidazol-2-yl)-5-(methoxymethyl)-3-pyridinecarboxylic acid
IMAZAMOX
(RS)-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-5-methoxymethylnicotinic acid
Odyseey
Raptor
Sweeper
Imazamox PESTANAL
AC299263
2-(4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-(methoxymethyl)-3-pyridinecarboxylic acid
2-(4-Isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-5-methoxymethylnicotinic acid, 2-[4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-(methoxymethyl)-3-pyridinecarboxylic acid
CL 299263
[Molecular Formula]

C15H19N3O4
[MDL Number]

MFCD03427427
[Molecular Weight]

305.33
[MOL File]

114311-32-9.mol
Chemical PropertiesBack Directory
[Melting point ]

166-167°C
[density ]

1.39 g/cm3
[storage temp. ]

0-6°C
[solubility ]

DMSO : 20 mg/mL (65.50 mM)
[form ]

neat
[pka]

pK1 2.3; pK2 3.3(at 25℃)
[color ]

White to off-white
[InChI]

InChI=1S/C15H19N3O4/c1-8(2)15(3)14(21)17-12(18-15)11-10(13(19)20)5-9(6-16-11)7-22-4/h5-6,8H,7H2,1-4H3,(H,19,20)(H,17,18,21)
[InChIKey]

NUPJIGQFXCQJBK-UHFFFAOYSA-N
[SMILES]

C1(C2NC(=O)C(C)(C(C)C)N=2)=NC=C(COC)C=C1C(O)=O
[CAS DataBase Reference]

114311-32-9(CAS DataBase Reference)
[EPA Substance Registry System]

114311-32-9(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

N
[Risk Statements ]

R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
[Safety Statements ]

S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
[RIDADR ]

UN3077 9/PG 3
[WGK Germany ]

3
[Hazardous Substances Data]

114311-32-9(Hazardous Substances Data)
[Toxicity]

LD50 (technical grade) orally in rats: >5000 mg/kg; dermally in rabbits: >4000 mg/kg; LC50 by inhalation in rats: >6.3 mg/l (Glover)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Diethyl oxalate-->3-Methyl-2-butanone
Questions And AnswerBack Directory
[Description]

Imazamox (2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5- (methoxymethyl)-3-pyridinecarboxylic acid) is a systemic herbicide that moves throughout the plant tissue and prevents plants from producing a necessary enzyme, acetolactate synthase (ALS), which is not found in animals. Susceptible plants will stop growing soon after treatment, but plant death and decomposition will occur over several weeks.
Imazamox is used for the control of vegetation in and around aquatic sites and terrestrial non-crop sites. It is herbicidally active on many submerged, emergent, and floating broadleaf and monocot aquatic plants in and around standing and slow- moving water bodies. It is used as herbicide on sunflower seed, alfalfa, oilseed rape and soya bean seed and used for the control of most annual and perennial broadleaf weeds and grasses, woody species, and riparian and emergent aquatic weed species.
Imazamox is only moderately persistent, and it degrades aerobically in the soil to a non-herbicidal metabolite which is immobile or moderately mobile. Imazamox also degrades by aqueous photolysis.
[References]

[1] http://dnr.wi.gov/lakes/plants/factsheets/ImazamoxFactsheet.pdf
[2] https://www.efsa.europa.eu/en/efsajournal/pub/4432
[3] http://www.mass.gov/eea/docs/agr/pesticides/aquatic/imazamox.pdf
Hazard InformationBack Directory
[Chemical Properties]

Off-White Solid
[Uses]

Herbicide.
[Uses]

Imazamox is an imidazolinone based acetolactate synthase inhibitor that is utilized as a herbicide for weed control.
[Definition]

ChEBI: 2-(4-isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)-5-(methoxymethyl)nicotinic acid is a pyridinemonocarboxylic acid that is nicotinic acid which is substituted substituted at position 5 by a methoxymethyl group and at position 2 by a 4,5-dihydro-1H-imidazol-2-yl group, that in turn is substituted by isopropyl, methyl, and oxo groups at positions 4, 4, and 5, respectively. It is a pyridinemonocarboxylic acid, an ether, an imidazolone and a member of imidazolines.
[Pharmacology]

Imazamox kills plants by inhibiting acetolactate synthase (ALS) (I50 = 1 μM), which is the first common enzyme in the biosynthesis of the branched chain amino acids, valine, leucine, and isoleucine. Imazamox is rapidly absorbed through the leaves of plants. Once it enters the plant, imazamox rapidly translocates to the growing points and growth ceases within 1 day after herbicide application, followed by chlorosis and then by necrosis of the growing points. Total plant death will occur within 2 to 3 weeks after treatment.
[Metabolism]

Plant Metabolism. The selectivity of imazamox is due to differential rates and routes of metabolism in tolerant crops versus susceptible weeds (10). The primary metabolic route is hydroxylation followed by conjugation to glucose. In imidazolinone-resistant crops, the primary mechanism of selectivity is due to an altered acetolactate synthase that is not inhibited by imazamox (11).
Animal Metabolism. Metabolism studies in the rat showed that imazamox is rapidly excreted in the urine. There was no accumulation of imazamox or any of its derivatives in the liver, kidney, muscle, fat, or blood (9).
[Toxicity evaluation]

Imazamox has shown no mutagenic or genotoxic activity in the Ames assay, mammalian cell gene mutation assay, in vitro chromosome aberration assay, in vitro unscheduled DNA synthesis (URS) assay, or the in vivo dominant lethal assay inmale rats. The acute toxicity and effects on wildlife and soilmicroflora of imazamox are shown in Table 4. This herbicide also has a low potential for bioaccumulation in fish.
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

114311-32-9(sigmaaldrich)
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