QUINMERAC

QUINMERAC Basic information
Product Name:QUINMERAC
Synonyms:bas518;7-chloro-3-methyl-8-quinolinecarboxylicaci;7-chloro-3-methyl-8-quinolinecarboxylicacid;QUINMERAC;7-Chloro-3-Methyl-;bas51802h;bas518h;BUTISAN STAR
CAS:90717-03-6
MF:C11H8ClNO2
MW:221.64
EINECS:402-790-6
Product Categories:Agro Products;Agro-Products;Aromatics;Heterocycles
Mol File:90717-03-6.mol
QUINMERAC Structure
QUINMERAC Chemical Properties
Melting point 244°C
Boiling point 416.0±40.0 °C(Predicted)
density 1.406±0.06 g/cm3(Predicted)
storage temp. Room Temperature, under inert atmosphere
solubility DMSO (Slightly), Methanol (Slightly, Sonicated)
form neat
pka-2.84±0.10(Predicted)
color Pale Yellow to Pale Beige
Merck 13,8158
BRN 8392904
LogP0.780
EPA Substance Registry SystemQuinmerac (90717-03-6)
Safety Information
Hazard Codes T
WGK Germany 2
RTECS VB1981800
HS Code 29333990
ToxicityLD50 in rats (mg/kg): >5000 orally, >2000 dermally (Wuerzer)
MSDS Information
QUINMERAC Usage And Synthesis
Chemical PropertiesCrystalline Solid
UsesAuxin-type herbicide.
UsesHerbicide.
DefinitionChEBI: A quinolinemonocarboxylic acid that is quinoline-8-carboxylic acid carrying additional methyl and chloro substituents at positions 3 and 7 respectively. A residual herbicide used to control broad-leaved weeds on a range of crops including cereals, rape and beet.
Environmental FateIn the field, the DT50 of quinmerac may range from 3 to 33 days. Losses due to volatilization are negligible. Soil moisture conditions greatly influence quinmerac persistence by moderating microbial degradation and soil leaching. Quinmerac is only slightly adsorbed to the soil.
MetabolismChemical. Quinmerac is stable to heat, light, and in aqueous solutions with pH values between 3 and 9.
Plant. The degradation and metabolic pathways of quinmerac have not been extensively studied. In plants, oxidation of the 3-methyl group to the alcohol and hydroxylation at the 2-quinoline position are the major metabolism reactions (56). These quinmerac metabolites are subsequently conjugated to carbohydrates. The quantity of quinmerac metabolized varies among species, ranging from 5% to 80% (56).
Soil. In the soil, degradation of quinmerac was similar to that observed in plants, resulting in the same oxygenated and hydroxylated metabolites.

Toxicity evaluationQuinmerac is excreted in the urine of mammals and appears to remain primarily unmodified. The acute oral LD50 in rat is >5000 mg/kg.
Quinmerac-13C6 8-Quinolinemethanol QUINMERAC-METHYL 7-CHLORO-8-METHYLQUINOLINE QUINMERAC METHYL 8-Quinolinecarbaldehyde 8-Quinolinecarboxylic acid Quinolinic acid QUINMERAC

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