Or there's an alternate representation where you have the main carbon chain going up and down
and the OH and H groups are off to the left and right.
like this www.olemiss.edu/courses/chem222/CH.24-Notes/CH.%2024-CHEM%2022221.gif
( ,
Tue 25 Aug 2009, 23:16,
archived)
like this www.olemiss.edu/courses/chem222/CH.24-Notes/CH.%2024-CHEM%2022221.gif