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Page 3 of 4 EXTOXNET PIP - ESFENVALERATE .,Breakdown:in'soil and groundwater: Under field conditions, esfenvalerate is moderately persistent with a half-life ranging from about 15 days to three months depending on soil type [25]. In a soil laboratory study, 17%of the applied chemical was lost in 90 days. Esfenvalerate and its breakdowri products are relatively immobile in soil and thus pose little risk to groundwater [11]. The compounds ability to bind to soil increases with increasing organic matter. It is very insoluble in water. Fenvalerate has not been found in over 100 tested I4 groundwater supplies [34]. . Breakd6wn in.water: Esfenvalerate will break down in water to one-half of the original amount (half-life) in about twenty-one days due to sunlight [I I]. . Breakdown in vegetation: The parent compound is the residue most often found on foliage. In a series of trials in Canada where 16 varieties of fruits and vegetables were grown under typical outdoor conditions, no degradation products or metabolites were found (tests were sensitive to 0.05 mg/kg). Sampling was from 1 to 112 days after application. The half-life of esfenvalerate on plant surfaces is 2 to 4 weeks [31]. f Physical Properties: . Appearance: The pure compound exists as colorless crystals; the technical product as an amber liquid [12]. . Chemical Name: (S)-alpha-cyano-3-phenoxybenzyl(S)-2-(-4-chlorophenyl)-3-methylbutyrate [12] . CAS Number: 66230-04-4 . Molecular Weight: 419.90 . Water Solubility: <0.3 mg/L at 25 C, insoluble in water [12] . Solubility in Other Solvents: v.s. in hexane, acetone, chloroform, and methanol @ 20 C [12] . Melting Point: 59-60 C [12] . Vapor Pressure: 0.067 mPa @ 25 C [12] . Partition Coefficient: 6.2201 [12] . Adsorption Coefficient: 5300 [25] Exposure. Guidelines: . ADI:Not Available . MCL: Not Available . RfD: Not Available . PEL: Not Available . HA: Not Available . TLV:Not Available Basic Manufacturer: DuPont Agricultural Products Walker's Mill, Barley Mill Plaza P.O. Box 80038 Wlimington, DE 19880-0038 . Phone: 800-441-7515 . Emergency: 800-441-3637 References: References for the information in this PIP can be found in Reference List Number 2 D1S(A.,A T.N11ER, The information in thisp rofile does not in any way replace or supersede the information on the pesticide product labeling or other regulatory requirements. Please refer to the pesticide product labeling.