Alpha-cypermethrin By Guiyang Bestchem Co.,ltd

We are instrumental in providing to our valuable customers excellent quality Alpha-cypermethrin which is available with following specification:-
Chemical Name:racemate comprising (R)-a-cyano-3-phenoxybenzyl (1S,3S)-3-(2,2-dichloroethenyl)-2,2-
dimethycyclopropanecarboxylate and (S)-a-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
Molecular formula:c22h19cl2nO3
Molecular Weight:416.3
CAS NO:67375-30-8
Appearance:White to pale powder,
with a weak aromatic odour
S.g/density:1.28 (22a )
M.p.:78-81a
V.p.:2.3X10-2mPa(20a )
B.p.:200a /9.3Pa
F.P.:>80a (closed cup)
KOWlogP=6.97 (pH)
Solubility:In water c.0.01mg/l ( 25a ). In acetone 620, dichloromethane
550, cyclohexanone 515, ethyl acetate 440, chlorobenzene 420,
acetophenone 390, o-Xylene 350, hexane 7 (all in g/l, 25a ).
Stability:Very stable in neutral and acidic media. Hydrolysed in strongly
alkaline media.Thermally stable uo to 220a . Field data indicate that, in practice, it is stable to air and light.
Toxicity:Oral Acute oral LD50 for rats 474mg/kg; Skin and eye Acute
percutaneous LD50 (24h)for rats and rabbits >2000mg/kg. Minimal
irritant to eyes of rabbits. Inhalation LC50(4h) for rats0.32 mg/l air.
Toxicity class WHO (a.i)1b; EPA(formulation)II.

Quality Index:
Alpha-cypermethrin Technical
Content: a Y95% ,
Acid degreea 0.2%

Clients can avail this Alpha-cypermethrin at industry leading prices from us.