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Chemical Identification
Common Name
Pyrethrin I
中文通用名
除虫菊素Ⅰ
IUPAC
(Z)-(S)-2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
or
(Z)-(S)-2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl (1R)-trans-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
or
(Z)-(S)-2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl (+)-trans-chrysanthemate
CAS
(1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienylcyclopenten-1-yl (1R,3R)-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate
CAS No.
121-21-1
Molecular Formula
C21H28O3
Molecular Structure
Physical Properties
Molecular weight:pyrethrin I: 328.4; cinerin I: 316.4; jasmolin I: 330.4; Vapour pressure:2.7 mPa (pyrethrin I); Partition coefficient(n-octanol and water):logP = 5.9 (pyrethrin I); Solubility:In water 0.2 ppm (pyrethrin I).
Toxicology
ADI:( JMPR) 0.04 mg/ kg b.w. [1999].
Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

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