The tetranortriterpenoid class of naturally occurring organic compounds, of which the most noted compound is azadirachtin, extracted from the neem tree (Azadirachta indica) that displays insecticidal properties. Azadirachtin mimics insect hormones called ecdysones that regulate the pupation of insects; application of azadirachtin interrupts the development and pupation of insects, eventually killing them.
The name indicates that the basic skeleton of such compounds contains 26 carbon atoms (4 fewer than triterpenes).
Azadirachtin is a tetranortriterpenoid[1] and a limonoid.
^"Pesticide Information Profile: Azadirachtin". Extension Toxicology Network. Cornell University. Archived from the original on 29 July 2020.
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The tetranortriterpenoid class of naturally occurring organic compounds, of which the most noted compound is azadirachtin, extracted from the neem tree...
secondary metabolite present in neem seeds. It is a highly oxidized tetranortriterpenoid which boasts a plethora of oxygen-bearing functional groups, including...
extract resulted in 100% mortality of larva 24 hours after exposure. Tetranortriterpenoid Amit Roy and Shailendra Saraf (2006). "Limonoids: Overview of Significant...
American plant genus) Ryanodine Spinosad AKA Spinosyn A Spinosyn D Tetranortriterpenoid Thymol (controls varroa mites in bee colonies) Bacillus sphaericus...
Deoxygedunin, or 14,15-deoxygedunin, is a tetranortriterpenoid isolated from the Indian neem tree a plant that has been in traditional Indian medicine...
take place after about 24 hours.[citation needed] As in relatives, tetranortriterpenoids constitute an important toxic principle. These are chemically related...
Sivramakrishnan, Apoorba; Bhat, Sujata V. (2002-08-01). "Three New Tetranortriterpenoids from Neem Seed Oil". Journal of Natural Products. 65 (8): 1177–1179...
primary active ingredient in neem is azadirachtin, a steroid-like tetranortriterpenoid, that exhibits a wide range of bioactivity to hundreds of phytophagous...
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