| Identification | More | [Name]
Imazaquin acid | [CAS]
81335-37-7 | [Synonyms]
(+/-)-2-[4,5-DIHYDRO-4-METHYL-4-(1-METHYLETHYL)-5-OXO-1H-IMIDAZOL-2-YL]-3-QUINOLINECARBOXYLIC ACID
2-(4-ISOPROPYL-4-METHYL-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-2-YL)-QUINOLINE-3-CARBOXYLIC ACID
2-(5-isopropyl-5-methyl-4-oxo-2-imidazolin-2-yl)-3-quinolinecarboxylic acid
IMAZAQUIN
imazaquin acid
SCEPTER
SCEPTER(R)
2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1h-3-quinolinecarboxylicaci
2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1h-imidazol-2-yl)-3-quinolin
2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1h-imidazol-2-yl)-3-quinolinec
2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1h-imidazol-2-yl)-3-quinolinecarboxylicaci
2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)quinoline-3-carboxylicacid
ac252,214
ac252214
imazaquine
imidazol-2-yl)-
IMAZAQUIN PESTANAL
IMAZAQUIN, 100MG, NEAT
IMAZAQUIN ANALYTICAL STANDARD
imazaquin (bsi,ansi,draft e-iso) | [Molecular Formula]
C17H17N3O3 | [MDL Number]
MFCD00778521 | [Molecular Weight]
311.34 | [MOL File]
81335-37-7.mol |
| Chemical Properties | Back Directory | [Melting point ]
219-224°C | [Boiling point ]
451.38°C (rough estimate) | [density ]
1.1420 (rough estimate) | [refractive index ]
1.6500 (estimate) | [storage temp. ]
0-6°C | [form ]
neat | [pka]
3.10±0.30(Predicted) | [BRN ]
5450078 | [Henry's Law Constant]
2.7×1011 mol/(m3Pa) at 25℃, Maniere et al. (2011) | [Major Application]
agriculture
environmental | [InChI]
1S/C17H17N3O3/c1-9(2)17(3)16(23)19-14(20-17)13-11(15(21)22)8-10-6-4-5-7-12(10)18-13/h4-9H,1-3H3,(H,21,22)(H,19,20,23) | [InChIKey]
CABMTIJINOIHOD-UHFFFAOYSA-N | [SMILES]
CC(C)C1(C)N=C(NC1=O)c2nc3ccccc3cc2C(O)=O | [Uses]
Agricultural chemical. | [CAS DataBase Reference]
81335-37-7(CAS DataBase Reference) | [EPA Substance Registry System]
81335-37-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R21:Harmful in contact with skin. | [Safety Statements ]
S36:Wear suitable protective clothing . | [WGK Germany ]
2 | [RTECS ]
VB2009800 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Acute Tox. 4 Dermal | [Hazardous Substances Data]
81335-37-7(Hazardous Substances Data) | [Toxicity]
LD50 orally in rats: 5000 mg/kg; LC50 (96 hr) in rainbow trout: 100 mg/l (Congleton) |
| Hazard Information | Back Directory | [Hazard]
Moderately toxic by ingestion and skin contact. Low toxicity by inhalation. | [Definition]
ChEBI: 2-[4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]quinoline-3-carboxylic acid is a quinolinemonocarboxylic acid that is quinoline-3-carboxylic acid which is substituted by a 4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl group at position 2. It is a quinolinemonocarboxylic acid, an imidazolone and a monocarboxylic acid. | [Production Methods]
Imazaquin is commercially produced through a multi-step synthesis that constructs its imidazolinone core, a hallmark of its herbicidal activity. The process typically begins with the preparation of quinolinecarboxylic acid derivatives, which are then coupled with substituted imidazolinone intermediates using condensation and cyclization reactions. These steps involve the use of reagents like phthalimide derivatives and require precise control of temperature, solvents, and catalysts to ensure high yield and purity. | [Mechanism of action]
Selective, systemic absorbed by roots and foliage. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS. | [Pharmacology]
Plant Metabolism. The selectivity of imazaquin is due to
differential rates and routes of metabolism in tolerant
crops versus susceptible weeds (3). The primary
metabolite in soybeans is a pyrroloquinoline acetamide
(41, Fig. 18), which is immobile in the plant and is not
an inhibitor of acetolactate synthase. This metabolite is
further broken down to eventually yield a dicarboxylic acid.
Animal Metabolism. Metabolism studies in the rat
showed that they rapidly excreted unchanged imazaquin
in the urine (5). There was no accumulation of imazaquin or any of its derivatives in the liver, kidney, muscle,
fat, or blood. There was no detectable residue in the
liver, kidney, muscle, or fat of lactating goats and
laying hens, which were fed imazaquin for 7 consecutive
days (5). | [Metabolism]
Imazaquin 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. Imazaquin is rapidly
absorbed through the roots of plants. Once it enters
the plant, imazaquin rapidly translocates to the growing
points and growth ceases within 1 day after herbicide
application followed by chlorosis and then necrosis of the
growing points. Total plant death will occur within 2 to
3 weeks after treatment. | [Toxicity evaluation]
Imazaquin 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 in male rats. This herbicide also has a low potential for
bioaccumulation in fish. | [Pesticide Type]
Herbicide; Plant Growth Regulator |
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