Pesticide composition containing cantharidin
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 杨凌农林科大昆虫资源研究发展中心
- Publication Date
- 2006-04-26
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to an insecticide composition, in particular to a synergistic composite composition of cantharidin, an animal-source insecticide active ingredient, and an insecticide. Background technique
[0002] Cantharidin (Cantharidin, C 10 h 12 o 4 ) is a natural monoterpene insect toxin that exists in insects such as Coleopera (Coleopera) and Meloidae (Meloidae), and is a defensive substance in the cantharis. The chemical name of cantharidin is exo type, 1,2 cis-dimethyl, 3,6-oxo bridge hexahydrophthalic anhydride; the molecular weight is 196.2, and the structural formula is as follows:
[0003]
[0004] Cantharidin crystallizes as rhombic prisms in acetone, white needles in chloroform, and white bran flakes in ethanol. The melting point determined by capillary method is 215-216.8°C. Insoluble in cold water, hardly soluble in ether (1g / 700ml), solubility in chloroform, dichloromethane, acetone, ethyl acetate ...