Basic

CAS No.	121-21-1
Product Name	2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl chrysanthemate
Synonyms	pyrethrine I; (1S)-2-methyl-4-oxo-3-[(2Z)-penta-2,4-dien-1-yl]cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate; 2-methyl-4-oxo-3-[(2E)-penta-2,4-dien-1-yl]cyclopent-2-en-1-yl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate; (1S)-2-methyl-4-oxo-3-[(2E)-penta-2,4-dien-1-yl]cyclopent-2-en-1-yl (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate
Molecular Formula	C21H28O3
Molecular Weight	328.4452

Physical property

Density	1.04g/cm3
Boiling point	424.3°C at 760 mmHg
Flash point	182.3°C
Refractive index	1.524