There could be two winners. If the first correct answer isn't from an undergraduate student then I'll select a second winner from those undergraduates who post the correct answer. You will need to identify yourself as an undergraduate in order to win. (Put "undergraduate" at the bottom of your comment.) Every undergraduate who posts a correct answer will have their names entered in a Christmas draw. The winner gets a free autographed copy of my book! (One entry per week. If you post a correct answer every week you will have ten chances to win.)
Some past winners are from distant lands so their chances of taking up my offer of a free lunch are slim. (That's why I can afford to do this!)
Name the molecule shown in the figure. Remember that your name has to be unambiguous. The best way to do this is to use the full IUPAC name but usually there are traditional names that will do.
Winners
Nov. 2009: Jason Oakley, Alex Ling
Oct. 17: Bill Chaney, Roger Fan
Oct. 24: Bill Chaney
UPDATE: The winner is Joseph C. Somody.
Allantoin
ReplyDelete--Joseph C. Somody, Undergraduate
(2,5-dioxoimidazolidin-4-yl)urea
ReplyDeleteAllantoin?
It's allantoin - which should be good enough. But if you want the crazy "unambiguous" version, then IUPAC name (according to Wikipedia) is 2,5-Dioxo-4-imidazolidinyl) urea.
ReplyDeleteBTW, are you saying that N-[(5S)-5-amino-5-carboxypentyl]-L-glutamic acid is incorrect name for saccarophine???
Allantoin or (2,5-Dioxo-4-imidazolidinyl) urea
ReplyDelete2,5-Dioxo-4-imidazolidinyl urea
ReplyDeleteThe molecule is (2,5-dioxoimidazolidin-4-yl)urea
ReplyDelete*not an undergrad
The common name is Allantoin, its sytematic name is 1-(2,5-dioxoimidazolidin-4-yl)urea
ReplyDeleteI am not an undergraduate, I'm a mining engineer which should qualify me for something
Is Google allowed? I found the solution fairly easily using it...
ReplyDeleteLarry-
ReplyDeleteThe molecule is allantoin. It is the secreted breakdown product in purine metabolism in a number of organisms, including mammals, except for the great apes (in which humans are included, of course).
The IUPAC name is (2,5-Dioxo-4-imidazolidinyl) urea.
Best wishes,
Bill Chaney
DK asks,
ReplyDeleteBTW, are you saying that N-[(5S)-5-amino-5-carboxypentyl]-L-glutamic acid is incorrect name for saccarophine???
I'm really not sure if that name is correct for L-saccharopine but it doesn't really matter since your answer wasn't the first one I received. Bill Chaney beat you by two minutes!
I said,
ReplyDelete...but it doesn't really matter since your answer wasn't the first one I received. Bill Chaney beat you by two minutes!
Oops! My mistake. DK beat Bill by 24 hours!!
Now I'll have to check and see whether his name for the molecule is correct.
Thanks to Bill Chaney for pointing out my error.
Now I'll have to check and see whether his name for the molecule is correct.
ReplyDeleteSounds like a lot of pain!
It is very likely correct - I copied it from one of the many chemical compounds databases and my experience is that they are very accurate (they list tons of synonyms, including the ones that come from another end, naming it a lysine derivative). In truth, of course, I had absolutely no idea what the compound is, much less what its crazy name might be. :-)