Lambda-Cyhalothrin TC

25kgs/bag; 25KG/Fibre Drum

Common name lambda-cyhalothrin 

 IUPAC name A reaction product comprising equal quantities of (S)-α-cyano-3-phenoxybenzyl (Z)-(1R,3R)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl (Z)-(1S,3S)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate Roth: (S)-α-cyano-3-phenoxybenzyl (Z)-(1R)-cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl (Z)-(1S)-cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate (1:1)
Chemical Abstracts name [1α(S*),3α(Z)]-(±)-cyano(3-phenoxyphenyl)methyl 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate  

 CAS RN [91465–08–6]  

EC no. 415–130–7

PHYSICAL CHEMISTRY
Composition Tech. grade is c. 81% pure. Mol. wt. 449.9 M.f. C₂₃H₁₉ClF₃NO₃  Form Colourless solid; (tech. is a dark brown/green solidified melt).  M.p. 49.2 °C; (tech., 47.5–48.5 °C)  B.p. Does not boil at atmospheric pressure V.p. 2 × 10^-4 mPa (20 °C, est.); 2 × 10^-1 mPa (60 °C, interpolated) K_ow logP = 7 (20 °C) Henry 2 × 10^-2 Pa m³ mol^-1 S.g./density 1.33 g/ml (25 °C) Solubility In water 0.005 mg/l (pH 6.5, 20 °C). In acetone, methanol, toluene, hexane, ethyl acetate >500 g/l. Stability Stable to light. Stable on storage for more than 6 months at 15–25 °C. pKa >9 (hydrolysis prevents measurement) F.p. 83 °C (tech.) (Pensky-Martens closed cup)