Preferred Label : allo-;
Detailed label : allo- in amino-acid nomenclature;
IUPAC definition : Amino acids with two chiral centres were named in the past by allotting a name to
the first diastereoisomer to be discovered. The second diastereoisomer, when found
or synthesized, was then assigned the same name but with the prefix allo-. This method
can be used only with trivial names but not with semisystematic or systematic names.
It is now recommended that allo should be used only for alloisoleucine and allothreonine.;
Origin ID : A00239;
See also
Amino acids with two chiral centres were named in the past by allotting a name to
the first diastereoisomer to be discovered. The second diastereoisomer, when found
or synthesized, was then assigned the same name but with the prefix allo-. This method
can be used only with trivial names but not with semisystematic or systematic names.
It is now recommended that allo should be used only for alloisoleucine and allothreonine.
