Guest guest Posted September 21, 2002 Report Share Posted September 21, 2002 In a message dated 9/20/02 7:04:31 PM, writes: >How do you differentiate L and D form aminos? Dennis > >> > >> They're mirror images of each other, much like your left and right > >hands. > >> In fact, they're commonly referred to as the left-hand and right- > >hand > >> forms. I'm not sure how they decide which is which, though. The absolute determination of the position of the hydroxyl group for D-glyceraldehyde was determined by x-ray techniques according to my organic chemistry textbook. All other chiral compounds are compared to D-glyceraldehyde to determine their stereochemical characteristic. Namaste, Liz <A HREF= " http://www.csun.edu/~ecm59556/Healthycarb/index.html " > http://www.csun.edu/~ecm59556/Healthycarb/index.html</A> Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 21, 2002 Report Share Posted September 21, 2002 ----- Original Message ----- From: <Ecmillerreid@...> > >> In fact, they're commonly referred to as the left-hand and right-hand > >> forms. I'm not sure how they decide which is which, though. > > The absolute determination of the position of the hydroxyl group for > D-glyceraldehyde was determined by x-ray techniques according to my organic > chemistry textbook. All other chiral compounds are compared to > D-glyceraldehyde to determine their stereochemical characteristic. I meant that I'm not sure how they decide which one they're going to call the " left-hand " one and which one they're going to call the " right-hand " one. Quote Link to comment Share on other sites More sharing options...
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