Description :

Cypermethric Acid Chloride is mainly used for the manufacture of Cypermethrin, Permethrin, Beta Cypermethrin, Alpha Cypermethrin and some other products.

Chemical Name :

3-(2,2-dichlorovinyl)-2,2-dimethyl cyclopropane-1-carboxylic acid chloride

CAS Registry No. :


Structural Formula :

Physical properties :

Appearance : A clear pale yellow liquid free from extraneous impurities.
Boiling Point : 78-80°C at 1.5 mm Hg and 116-117°C at 7.5 mm Hg
Density : 1.23 g/ml at 30°C
Freezing Point : Does not freeze up to -5°C
Solubility : Miscible in n-hexane, benzene, toluene, chloroform and carbon tetrachloride in all proportions.
Reactivity : Reacts violently with water, alkali metals and their hydroxides. Reacts rapidly with alcohols giving corresponding esters. Evolves hydrogen chloride with water and alcohols.

Stability :

stable under normal storage conditions.

Specification :

“By GLC (area normalization method, as methyl ester)” : 98% (w/w) minimum
By IS : 97% (w/w) minimum
Acid content : 0.8% (w/w) maximum
Thionyl Chloride content : 0.2% (w/w) maximum
Other related substances (by GLC, after esterification) : 0.5% (w/w) maximum
Cis-Trans ratio : 55 : 45 to 50 : 50

Grades :

DV acid chloride with different cis-trans ratios is also available

Shelf Life :

Two years under normal storage conditions.

Packaging :

Technical Grade : 250 kg UN approved polylined MS drums