Fenvalerate , Analysis standard , 51630-58-1

Synonym(s):
α-Cyano-3-phenoxybenzyl α-(4-chlorophenyl)-iso-valerate

CAS NO.：51630-58-1

Empirical Formula: C25H22ClNO3

Molecular Weight: 419.9

MDL number: MFCD00055324

EINECS: 257-326-3

PRODUCT Properties

• Melting point: 54-59℃
• Boiling point: 300°C
• Density: d23 1.17
• vapor pressure: 1.92×10^-5 Pa (20 °C)
• refractive index: nD20 1.5533
• storage temp.: Sealed in dry,2-8°C
• solubility: DMSO:1.0(Max Conc. mg/mL);2.38(Max Conc. mM); DMF:30.0(Max Conc. mg/mL);71.44(Max Conc. mM); Ethanol:5.0(Max Conc. mg/mL);11.91(Max Conc. mM)
• form: Solid
• color: Off-white to light yellow
• Water Solubility: Soluble in 100% ethanol (>25 mg/ml), water (0.001 g/L) at 20°C, and DMSO.
• Merck: 13,4038
• BRN: 2025982

Description and Uses

Fenvalerate is a yellow-brown viscous liquid that is practically soluble in water. It is stable to moderate heat and light and is rapidly hydrolysed in basic environments (above pH 8). Fenvalerate is a racemic mixture of four stereoisomers in equal proportions owing to the presence of two chiral centres. It is a synthetic type II pyrethroid.
Fenvalerate is registered as an insecticide for a wide array of crop uses, as well as a termiticide and insect repellent.

Insecticide used against a wide variety of pests.

Safety

• Symbol(GHS): GHS06,GHS09
• Signal word: Danger
• Hazard statements: H301-H315-H319-H335-H410
• Precautionary statements: P261-P264-P273-P301+P310-P302+P352-P305+P351+P338
• Hazard Codes: T,N
• Risk Statements: 25-36/37/38-50/53-57
• Safety Statements: 26-45-60-61
• RIDADR: UN 2811 6.1/PG 3
• WGK Germany: 3
• RTECS: CY1576350
• HazardClass: 6.1(b)
• PackingGroup: III
• HS Code: 29269090
• Toxicity: LD50 orally in rats: 451 mg/kg (DMSO); >3200 mg/kg (aqueous suspension), Shell Technical Data Bulletin