52341-32-9

Product Name: (3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethyl-cycloprop ane-1-carboxylate

Formula: C21H20Cl2O3

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CHEMICAL AND PHYSICAL PROPERTIES COMPUTED DESCRIPTORS PRODUCT INTRODUCTION

CHEMICAL AND PHYSICAL PROPERTIES

Physical Description	Permethrin is a pale brown liquid. Relatively water insoluble. Used as an insecticide.
Color/Form	Colorless crystals to a viscous liquid; Color, white to pale yellow
Boiling Point	220 °C at 5.00E-02 mm Hg
Melting Point	34 °C
Solubility	0.006 mg/L (at 20 °C)
Density	1.19 - 1.27 at 20 °C
Vapor Pressure	0.00000002 [mmHg]
LogP	6.5
Stability/Shelf Life	Stable to heat (> or = 2 yr at 50 °C), more stable in acid than alkaline media with optimum stability ca. pH 4; some photochemical degradation has been observed in laboratory studies but field data indicate this does not adversely affect biological performances.
Decomposition	When heated to decomp it emits toxic fumes of /hydrogen chloride/.
Corrosivity	Does not corrode aluminum
Other Experimental Properties	Mixture of approx 60% trans- and 40% cis-isomers; colorless crystals to a pale yellow viscous liquid; mp: ca 35 °C; bp: 220 °C at 0.05 mm Hg; sp gr: 1.190-1.272 at 20 °C/4 °C; vapor pressure: < 1X10-6 mm Hg at 50 °C; solubility in water: < 1 ppm; sol or miscible with organic solvents except ethylene glycol. /Technical permethrin/
Chemical Classes	Pesticides -> Pyrethrins/Pyrethroids

Molecular Weight	391.3 g/mol
XLogP3	6.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	7
Exact Mass	390.0789499 g/mol
Monoisotopic Mass	390.0789499 g/mol
Topological Polar Surface Area	35.5 Å²
Heavy Atom Count	26
Formal Charge	0
Complexity	521
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	2
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	1
Compound Is Canonicalized	Yes

Permethrin is a pale brown liquid. Relatively water insoluble. Used as an insecticide.