Saturday, January 16, 2016

Dextrorotary or levorotatory and D or L forms

Greetings readers!

Dextrorotary or levorotatory and D or L forms - We hear these terms, especially, in biochemistry of chiral carbon atoms.

Now, I always thought in D-glucose, the D is for dextrorotary. But I was wrong.

The denotion dextro/levo and D/L is completely different and unrelated to each other.

The denotion D or L is based on how a sugar molecule at its C1 position is related to D-glyceraldehyde. The denotion devo or levo based on how it changes the direction of polarized light to right or left respectively.

Coincidentally, yes, D-glucose is also dextrorotatory. But a striking and an important example is that D-fructose is strongly levorotatory.

No comments:

Post a Comment

This is express yourself space. Where you type create something beautiful! <3
Wondering what do I write? Well..
Tell us something you know better. You are a brilliant mind. Yes, you are! ^__^
Ask about something you don't understand @_@?
Compliment... Say something nice! =D
Be a good critic and correct us if something went wrong :|
Go ahead. Comment all you like here! (:

Related Posts Plugin for WordPress, Blogger...