Quizalofop-p-ethyl Chemical Properties

Melting point:

76-77°C

Boiling point:

220 °C

Density 

1.301±0.06 g/cm3(Predicted)

Flash point:

>100 °C

storage temp. 

Store at 2-8°C

solubility 

Chloroform (Slightly), Methanol (Slightly)

form 

Solid

pka

-1.39±0.48(Predicted)

color 

Light yellow to yellow

Water Solubility 

0.04 g/100 mL

InChI

InChI=1S/C19H17ClN2O4/c1-3-24-19(23)12(2)25-14-5-7-15(8-6-14)26-18-11-21-17-10-13(20)4-9-16(17)22-18/h4-12H,3H2,1-2H3/t12-/m1/s1

InChIKey

OSUHJPCHFDQAIT-GFCCVEGCSA-N

SMILES

C(OCC)(=O)[C@H](OC1=CC=C(OC2C=NC3C(N=2)=CC=C(Cl)C=3)C=C1)C

CAS DataBase Reference

100646-51-3(CAS DataBase Reference)

EPA Substance Registry System

Quizalofop-P-ethyl (100646-51-3)

Safety Information

Hazard Codes 

Xn

Risk Statements 

21/22

Safety Statements 

36/37

RIDADR 

UN3077 9/PG 3

WGK Germany 

3

RTECS 

UA2458257

HS Code 

29333990

Quizalofop-p-ethyl Usage And Synthesis

Uses

Post-emergence herbicide for control of grassy weeds in broad-leaved crops. Herbicide.

Definition

ChEBI: Quizalofop-P-ethyl is an ethyl 2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate that has R configuration. A proherbicide for quizalofop-P, it is used to control annual and perennial grass weeds in a variety of crops, including potatoes, sugar beet, peanuts, cotton and flax. It has a role as a proherbicide and an agrochemical. It is an ethyl 2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate and a quinoxaline herbicide. It is functionally related to a quizalofop-P. It is an enantiomer of a (S)-quizalofop-ethyl.

Purification Methods

This (±)-herbicide forms white crystals from Me2CO/EtOH and sublimes in vacuo. Large quantities can be distilled at high vacuum. Its solubilities at 20o in g/10mL are 0.09 (EtOH), 1.1 (Me2CO), 1.2 (xylene), 2.9 (*C6H6), and is nearly insoluble in H2O (0.3mg/L). The (±)-acid has [95977-28-9]. The R-ester enantiomer has m 76-77o (pale brown crystals from EtOH), [ ] D 20 + 3 5 . 9o (EtOH). It is the more active fatty acid synthase inhibitor (designated DPX-Y6202) used to control grassy weeds in broadleaf crops.

Quizalofop-p-ethyl(100646-51-3)Related Product Information

• Ethoxyquin
• Calcium Propionate
• phenoxybenzamine
• 2-Ethoxyethanol
• Ethyl 2-bromopropionate
• ISOXADIFEN-ETHYL
• Trinexapac-ethyl
• Dimethyl succinate
• Ethyl formate
• Ethyl acetate
• Ethylparaben
• Ethyl propionate
• Clobetasol propionate
• acetic acid, triethoxy-, ethyl ester
• Tris(trimethylsilyl)phosphate
• Ethanol
• Fenoxaprop-P
• QUIZALOFOP