Three stereoisomers of 2,3-butanediol
2R,3S
achiral
H
CH3
CH3
OH
OH
H
H
HO
CH3
CH3
H
HO
therefore,
this structure and its mirror image
are the same
it is called a meso form
a meso form is an achiral molecule that has stereogenic centers
are the same
it is called a meso form
a meso form is an achiral molecule that has stereogenic centers