| Company Name: |
J & K SCIENTIFIC LTD.
|
| Tel: |
18210857532; 18210857532 |
| Email: |
jkinfo@jkchemical.com |
| Products Intro: |
Product Name:Flupyrazofos
CAS:122431-24-7
Package:2.5g,250Mg
|
| Company Name: |
Energy Chemical
|
| Tel: |
021-58432009 400-005-6266 |
| Email: |
marketing1@energy-chemical.com |
| Products Intro: |
Product Name:Flupyrazofos
CAS:122431-24-7
Purity:NULL Package:2.5g;250mg Remarks:NULL
|
|
| | Flupyrazofos Basic information |
| | Flupyrazofos Chemical Properties |
| Boiling point | 399.0±52.0 °C(Predicted) | | density | 1.37±0.1 g/cm3(Predicted) | | vapor pressure | 3.7 x 10-3 Pa (25 °C) | | Water Solubility | 0.8 mg l-1 (25 °C) | | pka | -4.99±0.10(Predicted) |
| | Flupyrazofos Usage And Synthesis |
| Description | Water solubility of flupyrazofos is 0.8 mg/L. Log
Kow = 5.24. Flupyrazofos is slowly hydrolyzed in aqueous
media; DT50 at pH 4, 7, and 9 are 266, 180, and
121 h, respectively. Vp 3.7 mPa (25 C). Flupyrazofos is
a nonsystemic insecticide used for the control of caterpillars,
especially diamondblack moth, Plutella xylostella,
larvae. | | Uses | Flupyrazofos is a new pyrazole organophosporus insecticide, which has a high activity against the diamond-back moth (Plutella xylostella). | | Uses | Flupyrazofos is a new insecticide under development which has
shown good activity against caterpillars, especially Plutella xylostella
larvae. | | Metabolic pathway | The principal route of metabolism of flupyrazofos is by oxidative
desulfuration to the oxon which is hydrolysed, principally via base rather
than esterase catalysis, to 1-phenyl-3-trifluoromethyl-5-hydroxypyrazole.
The physico-chemical parameters of flupyrazofos, including water solubility,
hydrolysis rates, vapour pressure and octanol/water partition
coefficients, have been reported by Kim et al. (1997). | | Metabolism | The principal
route of metabolism of flupyrazofos is by oxidative
desulfuration to the oxon, followed by hydrolysis to 1-
phenyl-3-trifluoromethyl-5-hydroxypyrazole and diethyl
hydrogen phosphate. Flupyrazofos is degraded in soil with
DT50 of about 14 d. | | Toxicity evaluation | Acute oral LD50 for rats is 372–605 mg/kg. | | Degradation | The hydrolytic half-life at pH values 4, 7 and 9 was 266, 180 and 121
hours, respectively (Kim et al., 1997). Flupyrazofos showed good photostability.
The photodegradation products which were identified were
flupyrazofos oxon (2), 1-phenyl-3-trifluoromethyl-5-hydroxypyrazole
(3) and the thiono-thiolo rearranged isomer O,S-diethyl O-(1-phenyl-3-
trifluoromethyl)pyrazol-5-yl phosphorothioate (4) (Cho et al., 1993) (Scheme 1). |
| | Flupyrazofos Preparation Products And Raw materials |
|