Guaranin

Gramme 37, 113, 146, 175, 179 Graveoline 114 Guanidine alkaloids 57 Guanine derived alkaloids 49 Guaranine 43, 51 Guvacoline 86... 

Caffeine Caffeine [l,3,7-trimethyl-l//-purine-2,6(3/7,7//)-dione], molecular formula C8H10N4O2, is a xanthine (purine) alkaloid, found mainly in tea leaves Camellia sinensis) and coffee beans (Coffea arabica). Caffeine is sometimes called guaranine when found in guarana (Paullinia cupana), mateine when found in mate (Ilex paraguariensis) and theine when found in tea. Caffeine is found in a number of other plants, where it acts as a natural pesticide. It is odourless white needles or powder. Apart from its presence in the tea and coffee that we drink regularly, caffeine is also an ingredient of a number of soft drinks. 

The seeds of the Brazilian plant Paullinia cupana (Sapindaceae) are used to make a stimulant drink. Crushed seeds are mixed with water to a paste, which is then sun dried. Portions of this are then boiled with hot water to provide a refreshing drink. The principal constituent, previously called guaranine, has been shown to be identical to caffeine, and the seeds may contain 3-5%. Small amounts of theophylline (0-0.25%) and theobromine (0.02-0.06%) are also present. Guarana is widely available as tablets and capsules, or as extracts, in health food shops where it is promoted to relieve mental and physical fatigue. Labels on such products frequently show the active constituent to be guaranine, but may not indicate that this is actually caffeine. 

Common Name Cafeina Cafeine Caffeine Coffein Guaranine Kafeiyin Kaffein Koffein Mateina Methyltheobromine Thein... 

Caffeine (= 1,3,7-Trimethylxanthine Coffeine Guaranine Thein Theine) (purine, methylxanthine) the plant bioactive most consumed by humans ... 

Coffeine Guaranine Coffea spp. (Rubiaceae), Paullinia cGMP PDE, ryanodine R)... 

Caffeine (= 1,3,7-Trimethylxanthine Coffeine Guaranine Thein Theine)... 

Synonyms. Anhydrous Caffeine Coffeinum Guaranine Methyltheobromine Theine. 

Synonyms 3,7-dihydro-l,3,7-trimethyl-l/7-purine-2,6-dione 1,3,7- trimethylxan thine 1,3,7-trimethyl-2,6-dioxopurine methyl-theobromine guaranine theine... 

Synonyms CAS 58-08-2 CAFFEIN COFFEINE ELDIATRICC GUARANINE NO-DOZ ORGANEX THEIN... 

Note that guarana contains guaranine (which is known to be identical to caffeine) as well as small quantities of other xanthines. 

Consisting of caffeine and aU so-called caffeine analogues that include, but are not limited to, the following terms caffeine, guaranine, mateina, mateine, methyltheobromine, thein, theine, 1,3,7-trimethylxanthine, l,3,7-trimethyl-2,6-dioxopurine, and T-methyltheophylHne. 

Caffeine, coffeln(e) (theine, methyltheobromine, guaranine, 1,3,7-trimethylxanthin). 

Sapinidaceae Paullinia cupana Guaranine Theophylline Theobromine... 

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