Monday's Molecule #201

The last Monday's Molecule was L-gulose and the winner was Bill Gunn. It was a special anniversary (#200) so I reposted my original Monday's Molecule from November 13, 2006 [Monday's Molecule #200]. I don't think it was any easier this year than it was seven years ago. That's a shame since biochemistry students should have had no problem getting the right answer if they understand the basic concept behind drawing structures of carbohydrates.

Let's see if you can do any better with the same molecule from November 20, 2006. It's a common molecule, although I think it's not taught in most introductory biochemistry courses. It's in most of the textbooks.

Post your answer as a comment. I'll hold off releasing any comments for 24 hours. The first one with the correct answer wins. I will only post mostly correct answers to avoid embarrassment. The winner will be treated to a free lunch.

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.)

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Posted in: Biochemistry