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Quizalofop-P-ethyl

Quizalofop-P-ethyl structure

CAS No:
100646-51-3
Formula:
C19H17ClN2O4
Chemical Name:
Quizalofop-P-ethyl
Synonyms:
Propanoic acid,2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]-,ethyl ester,(2R)-;Propanoic acid,2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]-,ethyl ester,(R)-;Quizalofop-P-ethyl;Assure II;Targa D+;Quizalofop-P-ethyl;Ethyl (2R)-2-[4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy]propionate;Ethyl (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate;(R)-Quizalofop ethyl;Targa Super;Astarg 125;Leopard 5EC;(+)-Quizalofop ethyl
Categories:
Agrochemicals > Herbicides

Description

Quizalofop-P-ethyl is a slightly toxic, selective, postemergence phenoxy herbicide, used to control annual and perennial grass weeds in potatoes, soybeans, sugar beets, peanuts vegetables, cotton and flax. Quizalofop-P-ethyl is absorbed from the leaf surface and is moved throughout the plant. Quizalofop-P-ethyl accumulates in the active growing regions of stems and roots.

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 derives from a quizalofop-P. It is an enantiomer of a (S)-quizalofop-ethyl.

Quizalofop-P-ethyl Basic Attributes

Molecular Weight：

372.8

Exact Mass：

372.80

EC Number：

600-119-3

UNII：

1U4923B12R

DSSTox ID：

DTXSID0034857

HScode：

2933399023

Characteristics

PSA：

70.5

XLogP3：

4.28

Density：

1.35 @ 20 deg C

Melting Point：

76.5 °C

Boiling Point：

220 °C

Flash Point：

>100 °C

Refractive Index：

1.604

Water Solubility：

H2O: 0.04 g/100 mL

Vapor Pressure：

6.49X10-9 mm Hg @ 20 deg C

Safety Information

Transport codes：

UN30779/PG3

hazard class code：

21/22

safety instructions：

36/37

RTECS Number：

UA2458257

Marks：

Stability/Shelf Life：

Stable at 50 deg C for 90 days. Stable in organic solvents at 40 deg C for 90 days. Unstable to light (DT50 10-30 days). Stable at pH 3-7.

Precautionary statement(s)：

P280

Hazard Statements：

H302-H312-H413

GHS Classification：

|Warning|H302 (79.33%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P273, P280, P301+P312, P302+P352, P312, P322, P330, P363, P391, and P501|Aggregated GHS information provided by 180 companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH：

Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE. (See all compounds classified as Herbicides.)

MeSH Entry Terms：

quizalofop-ethyl

Quizalofop-P-ethyl Use and Manufacturing

Uses

Post-emergence herbicide for dry fields, suitable for controlling grassy weeds in broad-leaved crops such as soybean, peanut, cotton, potato, mung bean, watermelon, rape, etc.

Use Classification：

Agrochemicals -> Herbicides|Herbicides|Environmental transformation -> Pesticides (parent, predecessor)

Agrochemical：

Quizalofop-P-ethyl has known environmental transformation products that include 3-OH-CQO, AE F020686, CQO, EPP, Hydroxy Propaquizafop acid (CGA 294972), Hydroxy ether (CGA 129674), Propaquizafop acid (CGA 287422), Quizalofop-acid (R+)isomer, and Quizalofop-acid (S-)isomer.

Computed Properties

Molecular Weight:372.8
XLogP3:4.3
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:7
Exact Mass:372.0876847
Monoisotopic Mass:372.0876847
Topological Polar Surface Area:70.5
Heavy Atom Count:26
Complexity:459
Defined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Phosphorus oxychloride

Ethyl propionate

Hydroquinone

Sodium hydroxide

Potassium carbonate

Ethanol

Acetonitrile

Thionyl chloride

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