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Quinine is an alkaloid, a naturally occurring chemical compound. [5] How it works as a medicine is not entirely clear. [5] Quinine was first isolated in 1820 from the bark of a cinchona tree, which is native to Peru, [5] [9] [10] and its molecular formula was determined by Adolph Strecker in 1854. [11]
The subject has also been attended with some controversy: Gilbert Stork published the first stereoselective total synthesis of quinine in 2001, meanwhile shedding doubt on the earlier claim by Robert Burns Woodward and William Doering in 1944, claiming that the final steps required to convert their last synthetic intermediate, quinotoxine, into ...
Parthenium integrifolium is a species of flowering plant in the family Asteraceae known by the common names wild quinine, American feverfew, and eastern feverfew. It is native to the eastern and midwestern United States.
Jesuit's bark, also known as cinchona bark, Peruvian bark or China bark, is a former remedy for malaria, as the bark contains quinine used to treat the disease. [1] The bark of several species of the genus Cinchona , family Rubiaceae indigenous to the western Andes of South America, was introduced to Jesuit missionaries during the 17th century ...
Among the quinoline alkaloids are the cinchona alkaloids quinine and quinidine, which are important due to their therapeutic potential, furthermore cinchonine and cinchonidine, as well as some furoquinoline alkaloids and acridine alkaloids.
C. pubescens varies from small to large in size, growing to 10 metres (33 ft) in height. When cut, the bark tends to turn red. Leaves are elliptical to oblate and thin. The leaves have pubescent teeth that turn red when they are older, hence its nickname the red quinine t
Cinchona officinalis is a shrub or tree with rugose bark and branchlets covered in minute hairs. Stipules lanceolate or oblong, acute or obtuse, glabrous. Leaves lanceolate to elliptic or ovate, usually about 10 centimetres (3.9 in). long and 3.5–4 centimetres (1.4–1.6 in). wide; acute, acuminate, or obtuse tip; base rounded to attenuate; coriaceous, glabrous above and often lustrous ...
The quinine in tonic water will fluoresce under ultraviolet light. In fact, quinine will visibly fluoresce in direct sunlight against a dark background. [19] The quinine molecules release energy as light instead of heat, which is more common. The state is not stable, and the molecules will eventually return to a ground state and no longer glow ...