Pyrethrin II

Pyrethrin II

Identifiers
Jmol 3D model	Interactive image
PubChem	5320807
SMILES CC1=C(C(=O)CC1OC(=O)C2C(C2(C)C)C=C(C)C(=O)OC)CC=CC=C
Properties
Chemical formula	C22H28O5
Molar mass	372.45472
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Pyrethrin II is an organic compound that is a potent insecticide. It is one of the two pyrethrins, the other being pyrethrin I. Thousands of tons this mixture are produced annually from chrysanthemum plants, which are cultivated in warm climates. Whereas pyrethrin I is a derivative of (+)-trans-chrysanthemic acid, in pyrethrin II one methyl group is oxidized to a carboxymethyl group, the resulting core being called pyrethric acid. Knowledge of their chemical structures opened the way for the production of synthetic analogues, which are called pyrethroids. In terms of their biosynthesis, pyrethrins are classified as terpenoids, being derived from dimethylallyl pyrophosphate.