Noun:

நச்சுச் செடிவகை,

aconitine தமிழ் அர்த்தத்தின் உதாரணம்:

None

aconitine's Usage Examples:

Pseudaconitine, obtained from Aconitum ferox, gives on hydrolysis acetic acid and veratrylpseudaconine, the latter of which suffers further hydrolysis to veratric acid and pseudaconine.

Hydrolysis gives acetic acid and benzaconine, the chief constituent of the alkaloids picraconitine and napelline; further hydrolysis gives aconine.

It is by no means the most powerful poison known, for such an alkaloid as pseud-aconitine, which is lethal in dose of about 1/200 of a grain, is some hundreds of times more toxic, but prussic acid is by far the most rapid poison known, a single inhalation of it producing absolutely instantaneous death.

The action of aconitine on the circulation is due to an initial stimulation of the cardio-inhibitory centre in the medulla oblongata (at the root of the vagus nerves), and later to a directly toxic influence on the nerve-ganglia and muscular fibres of the heart itself.

It contains considerable quantities of the alkaloid pseudaconitine, which is the most deadly poison known.

The usual test for solutions of aconitine consists in slight acidulation with acetic acid and addition of potassium permanganate, which causes the formation of a red crystalline precipitate.

Chemistry The active principle of Aconitum Napellus is the alkaloid aconitine, first examined by P.

Japaconitine, obtained from the Japanese aconites, known locally as "kuza-uzu," hydrolyses to japbenzaconine, which further breaks down to benzoic acid and japaconine.

Luff obtained apoaconitine, aconine and benzoic acid by hydrolysis; while, in 1892, C.

Other related alkaloids are lycaconitine and myoctonine which occur in wolfsbane, Aconitum lycoctonum.

The best method of application is by rubbing in a small quantity of the aconitine ointment until numbness is felt, but the costliness of this preparation causes the use of the aconite liniment to be commonly resorted to.