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Encyclopedia > Azadirachtin

Azadirachtin is a chemical compound belonging to the limonoids. It is a secondary metabolite present in the Neem tree seeds. The molecular formula is C35H44O16. Azadirachtin is a highly oxidised tetranortriterpenoid which boasts a plethora of oxygen functionality, comprising an enol ether, acetal, hemiacetal, and tetra-substituted oxirane as well as a variety of carboxylic esters. It is classified among the plant secondary metabolites. A chemical substance is any material substance used in or obtained by a process in chemistry: A chemical compound is a substance consisting of two or more chemical elements that are chemically combined in fixed proportions. ... Limonoids are phytochemicals, abundant in citrus fruit and other plants of the classes Rutaceae and Meliaceae. ... Secondary metabolites are those chemical compounds in organisms that are not directly involved in the normal growth, development or reproduction of organisms. ... Binomial name Azadirachta indica A.Juss. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... The tetranortriterpenoid class of chemical compounds most noted for the chemical azadirachtin, an extract from the neem tree (Azadirachta indica) that displays insecticidal properties. ... Secondary metabolites, also known as natural products, are those products (chemical compounds) of metabolism that are not essential for normal growth, development or reproduction of an organism. ...

image:Azadirachtin_A.png

Structure of Azadirachtin Image File history File links Structure Azadirachtin A File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...

Additionally, both secondary and tertiary hydroxyl groups and tetrahydrofuran ether are present. Inspection of the molecular structure reveals 16 stereogenic centres, 7 of which are tetrasubstituted. These characteristics explain the great difficulty encountered when trying to produce it by a synthetic approach. It was initially found to be active as a feeding inhibitor towards the desert locust (Schistocerca gregaria), it is now known to affect over 200 species of insect, by acting mainly as an antifeedant and growth disruptor. It fulfils many of the criteria needed for a natural insecticide if it is to replace synthetic compounds. Azadirachtin is biodegradable and shows very low toxicity to mammals, thus being environmentally sound. Tetrahydrofuran, also known as THF, hydrofuran, oxolane, oxacyclopentane, or furanidine, is a heterocyclic organic compound. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... Binomial name Schistocerca gregaria Forsskål, 1775 Plagues of the desert locust (Schistocerca gregaria) have threatened agricultural production in Africa, the Middle East and Asia for centuries. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... A insecticide is a pesticide used against insects in all development forms. ... Biodegradation is the decomposition of material by microorganisms. ... Look up toxic and toxicity in Wiktionary, the free dictionary. ... Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals primarily characterized by the presence of mammary...


This compound is found in the seeds of the Neem tree (0.2 to 0.8 percent by weight). Many more compounds, related to Azadirachtin, are present in the seeds as well as in the leaves and the bark of the Neem tree which also show strong biological activities. Azadirachtin is the only correct name for this compound e.g. azadirachtin A is incorrect. Binomial name Azadirachta indica A.Juss. ...


  Results from FactBites:
 
EXTOXNET PIP - AZADIRACHTIN (1491 words)
Azadirachtin is used to control whiteflies, aphids, thrips, fungus gnats, caterpillars, beetles, mushroom flies, mealybugs, leafminers, gypsy moths and others on food, greenhouse crops, ornamentals and turf (232, 241).
Azadirachtin was classified as a mild irritant (233).
The LC50 for rainbow trout exposed to azadirachtin is 0.48 ppm (241).
Azadirachtin (243 words)
Azadirachtin A is a chemical compound belonging to the limonoids.
Azadirachtin A is a highly oxidised tetranortriterpenoid which boasts a plethora of oxygen functionality, comprising an enol ether, acetal, hemiacetal, and tetra-substituted oxirane as well as a variety of carboxylic esters.
Azadirachtin A is biodegradable and shows very low toxicity to mammals, thus being environmentally sound.
  More results at FactBites »


 

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