Flupyrazofos
- CAS No.
- 122431-24-7
- Chemical Name:
- Flupyrazofos
- Synonyms
- flupyrazofos;O,O-Diethyl O-1-phenyl-3-trifluoro methylpyrazol-5-ylphosphorothioate;diethoxy-[2-phenyl-5-(trifluoromethyl)pyrazol-3-yl]oxy-sulfanylidene-$l^{5}-phosphane;Phosphorothioic acid, O,O-diethyl O-[1-phenyl-3-(trifluoromethyl)-1H-pyrazol-5-yl] ester
- CBNumber:
- CB81482207
- Molecular Formula:
- C14H16F3N2O3PS
- Molecular Weight:
- 380.32
- MDL Number:
- MFCD04113183
- MOL File:
- 122431-24-7.mol
Flupyrazofos Chemical Properties,Uses,Production
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.
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).
Toxicity evaluation
Acute oral LD50 for rats is 372–605 mg/kg.
Flupyrazofos Preparation Products And Raw materials
Raw materials
Preparation Products
Flupyrazofos Suppliers
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
J & K SCIENTIFIC LTD. | 010-82848833 400-666-7788 | jkinfo@jkchemical.com | China | 96815 | 76 |
Shanghai TaoSu Biochemical Technology Co., Ltd. | 021-33632979 | info@tsbiochem.com | China | 8072 | 58 |
Shenzhen Polymeri Biochemical Technology Co., Ltd. | +86-400-002-6226 | sales@rrkchem.com | China | 56077 | 58 |
Energy Chemical | 021-58432009 400-005-6266 | marketing1@energy-chemical.com | China | 44843 | 58 |
Supplier | Advantage |
---|---|
J & K SCIENTIFIC LTD. | 76 |
Shanghai TaoSu Biochemical Technology Co., Ltd. | 58 |
Shenzhen Polymeri Biochemical Technology Co., Ltd. | 58 |
Energy Chemical | 58 |