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Alpha-cypermethrin 97% TC

Chemical name: A racemate comprising (S)-alpha-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2- dichlorovinyl)-2,2-dimethylcyclopropane carboxylate and (R)-alpha-cyano-3-phenoxybenzyl (1S,3S)-3- (2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylate; and a racemate comprising (S)-alpha-cyano-3- phenoxybenzyl (1R)-cis-3-(2,2-dichloro-vinyl)-2,2-dimethylcyclopropane carboxylate and (R)-alpha- cyano-3-phenoxybenzyl (1S)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylate.

Structure formula

Molecular formula: C22H19Cl2NO3

Molecular weight: 416.3

CAS Number: 67375-30-80

Stability:

Highly stable to light and elevated temperatures. It is resistant to acidic hydrolysis but undergoes ester cleavage in environmental (basic) aquatic conditions. It has optimum stability at pH = 4. Its low solubility in water indicates a low bioavailability in aquatic situations.

Melting point: 81.5°C (pure material)

Melting range: 81.4-84.0°C (pure material)

Boiling point: 200 °C at 9.31 PA

Vapour pressure: 3.4 x 10-7 Pascals at 25 °C (pure material)

Octanol-Water partition coefficient:p = 3.16 x 105

Formulation: 10%EC

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