Talk:Guaranine

I've noticed other pages (e.g., Bawls) conflict with this page. So I want to put this here to make things clear. If anyone has any background in chemistry can add to this, it would be appreciated. Several websites support the point of view from this page: Although there are also sites that oppose this POV: And many other pages are simply mixed on the definition and say things like "experts say they may be the same." As best I can tell, guaranine is identical to caffeine in molecular structure, but due to its exotic source, it is considered (by some) to be its own compound. This might be a marketing thing (guaranine sounds more exotic and carries none of caffeine's negative undertones). --Daev 23:29, 17 Jun 2005 (UTC)
 * About.com Saying they are different names for the same thing.
 * Implying that guaranine is a marketing term
 * "Guaranine is probably just caffeine bound to a tannin or phenol."
 * Attributing guaranine's discovery to Theodore von Martius

ChemId and ACS -> guaranine = caffeine
Guaranine is not any more the mixture that it was for von Martius. For the ChemId Plus and ACS (CAS numbers) databases it is a synonym of caffeine. Same structural formula. When searching in ChemId Plus (either Lite or Advanced) look for all names and synonyms. Enter guaranine in its search box and read the findings, the formulas, the code numbers, the references, etc. Similarly, you'll also find that a synonym of caffeine is mateine, which still is believed by many to be different from caffeine. There is no doubt since the structural formulas are identical the substances are identical. In the respective plants they might bind with different compounds. But the pure crystaline substances are identical. For an ethnobotanical overview based on von Martius findings and their sequel see the Raintree Tropical Plant Dabase: Guaraná . Jclerman 03:59, 21 March 2006 (UTC)

Sorry, the NLM issues dynamic pages that expire after a short time. The following is a better approach that should be valid always.

The links below take you to the URLs where to initiate searches. Just enter guaranine or any other drug name in the search boxes.


 * PubChem


 * ChemIDplus Lite


 * ChemIDplus Advanced


 * TOXNET

Jclerman 04:34, 22 March 2006 (UTC)