QUINMERAC

Bezeichnung:QUINMERAC

Englisch Name:QUINMERAC

CBNumberCB8468273

SummenformelC11H8ClNO2

Molgewicht221.64

QUINMERAC physikalisch-chemischer Eigenschaften

Schmelzpunkt	244°C
Siedepunkt	416.0±40.0 °C(Predicted)
Dichte	1.406±0.06 g/cm3(Predicted)
storage temp.	Room Temperature, under inert atmosphere
Löslichkeit	DMSO (Slightly), Methanol (Slightly, Sonicated)
pka	-2.84±0.10(Predicted)
Farbe	Pale Yellow to Pale Beige
Merck	13,8158
BRN	8392904
LogP	0.780
EPA chemische Informationen	Quinmerac (90717-03-6)

Sicherheit

Kennzeichnung gefährlicher	T
WGK Germany	2
RTECS-Nr.	VB1981800
HS Code	29333990
Toxizität	LD50 in rats (mg/kg): >5000 orally, >2000 dermally (Wuerzer)

Gefahreninformationscode (GHS)

Chemische Eigenschaften
Crystalline Solid
Verwenden
Herbicide.
Verwenden
Auxin-type herbicide.
Definition
ChEBI: 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 Fate
In 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.
Stoffwechsel
Chemical. 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 evaluation
Quinmerac is excreted in the urine of mammals and appears to remain primarily unmodified. The acute oral LD₅₀ in rat is >5000 mg/kg.