Alkaloid
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Alkaloids are a broad class of naturally occurring organic compounds that contain at least one nitrogen atom. Some synthetic compounds of similar structure may also be termed alkaloids.
The first individual alkaloid, morphine, was isolated in 1804 from the opium poppy (Papaver somniferum).
Friedrich Sertürner, the German chemist who first isolated morphine from opium.
Strychnine tree. Its seeds are rich in strychnine and brucine.
Crystals of piperine extracted from black pepper.
Coca
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Coca refers to any of the four cultivated plants in the family Erythroxylaceae, native to western South America. It is known worldwide for its psychoactive alkaloid, cocaine. The leaves contain cocain
Alkaloid
…was an opium-containing drug. A Chinese book on houseplants written in 1st–3rd centuries BC mentioned a medical use of ephedra and opium poppies. Also, coca leaves have been used by Indigenous South Americans since ancient times. Extracts from plants containing toxic alkaloids, such as aconitine and…
Erythroxylum novogranatense var. novogranatense leaves and berries
Leaves
Leaves and fruit
Leaves and branches