English name:Flumioxazin
Cas No. 103361-09-7
Product Description:

Information:

IUPAC name : 2-[7-fluoro-3,4-dihydro-3-oxo-4-(2-propynyl)-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione

Chemical formula: C₁₉H₁₅FN₂O₄

Molecular mass (g mol-1) _:354.33

Physical state :White when pure (99.6%), yellow-brown powder (97.65)

Properties :

Melting point (°C) : 203.5

Bulk density : 1.5 g/cm³

Vapour pressure at 20°C (mPa)：0.32

Degradation point (°C) ：273.3

Solubility - In water at 20°C(mg l-1) ：0.786

Solubility - In organic solvents at 20°C (mg l-1) ：Acetone：17000 ；Methanol：1600 ；Hexane ：25；Ethyl acetate ：17800

ECOTOXICOLOGY

Mammals - Acute oral LD50 (mg kg-1) ：> 5000

Mammals - Short term dietary NOEL(ppm diet)：300

Birds - Acute LD50 (mg kg-1)：> 2250

Birds - Short term dietary (LC50/LD50)：> 500 ppm

Fish - Chronic 21 day NOEC (mg l-1)：0.37

Fish - Acute 96 hour LC50 (mg l-1) ：2.3

Aquatic invertebrates - Acute 48 hour EC50 (mg l-1)：5.9

Aquatic invertebrates - Chronic 21 day NOEC (mg l-1)：0.057

Earthworms -Acute 14 day LC50 (mg kg-1)：> 491

Algae - Acute 72 hour EC50, growth (mg l-1)：0.000852

TOXICOLOGY

Mammals - Acute oral LD50 (mg kg-1) > 5000 Rat

Mammals - Dermal LD50 (mg kg-1 body weight) > 2000 Rat

Mammals - Inhalation LC50 (mg l-1) > 3.93  Rat, 4 hr (nose only)

ADI - Acceptable Daily Intake (mg kg-1bw day-1):  0.009 Mouse 

ARfD - Acute Reference Dose (mg kg-1bw day-1)：0.05

Product description:

Propyrazine is a protoporphyrinogen oxidase (PPO) inhibitor. In light and oxygen, it causes a large amount of accumulation of protoporphyrin in sensitive crops, which enhances the lipid peroxidation of the cell membrane, resulting in irreversible damage to the cell membrane structure and cell function of sensitive weeds. Propyrachlor is also a contact selective herbicide. After treating the surface layer of soil, the agent is absorbed by the soil particles and forms a treatment layer on the surface of the soil particles. After the weeds germinate, the seedlings die after contacting the treatment layer.

Propyrachlor is used pre-emergence to control most annual broad-leaved weeds and some annual gramineous weeds in soybeans, peanuts, orchards, grapes and other crop fields, such as Commelina communis, P. chinensis, Xanthium sibiricum, Abutilon , Portulaca oleracea, Mustard petal flower, horse tang, etc., also have a certain inhibitory effect on barnyard grass, bristlegrass, golden bristlegrass, wild oats and endives. Propyrazine has a good control effect on the glyphosate weeds, which is becoming increasingly difficult to control-water hemp, and it has an excellent control effect on concentrated farming systems. The crops after the application of propaflux can choose to plant crops such as corn, wheat, barley, sorghum, alfalfa, dried bean, sugar beet and other crops.