Cinchona succiruhra

Quinamine, CjgH240jN2. This alkaloid was isolated from Cinchona succiruhra bark by Hesse and subsequently found by him in the barks of several cinchona spp. but especially in C. ledgeriana bark. It has been examined in detail recently by Henry, Kirby and Shaw. )... 

Detection. Cinchonine is sparingly soluble in all ordinary solvents, is not fluorescent in dilute sulphuric acid, is dextrorotatory, forms a soluble tartrate and hydriodide and does not give the thalleioquin reaction. Hesse s homocinchonine has been shown to be impure cinchonine. Cinchonidine, C49H22ON2. This alkaloid occurs in most varieties of cinchona bark, but especially in C. succiruhra. 

The species of cinchona officially recognised in the B.P.C. were C. cali-say a Weddell, C. ledgeriana Moens, C. officinalis Linn., C. succiruhra Pavon, and hybrids of either of the last two species with either of the first two. They contain from 5 to 10 per cent of total alkaloids, mainly quinine, cinchonidine, cinchonine and quinidine. 

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See also in sourсe #XX -- [ , ]

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