Nimbin, whose term in the official IUPAC nomenclature is: methyl (2R, 3aR, 4aS, 5R, 5aR, 6R, 9aR, 10S, 10aR) -5- (acetyloxy) -2- (furan-3-yl) -10 – (2-methoxy-2-oxoethyl) -1, 6,9a, 10a-tetramethyl-9-oxo-3,3a, 4a, 5,5a, 6,9,9a, 10,10a-decahydro-2H-cyclopenta [b] naphtho [2,3-d] furan -6-carboxylate is a triterpenoid.
Nimbin has a molecular formula: C30H36O9 and is a substance isolated from the Neem tree (Azadirachta indica A. Juss., 1830).
According to the most recent studies, nimbin is believed to be responsible for much of the biological activities of neem oil and to have anti-inflammatory, antipyretic, fungicidal, antihistamine and antiseptic properties.
Nimbin, together with nimbidin, is responsible for the bad smell of Neem. These two substances are able to act against viruses and bacteria, not only phytophages but also a good part of existing viruses and bacteria including those that attack humans and animals. Hence the scientific evidence that has led in recent years to study Neem in depth for the treatment of some pathologies related to these microorganisms.
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