M 2621 (OTTO) (S)-(−)-2-Methyl-CBS-oxazaborolidine, 97% Cas 112022-81-8 - used in the asymmetric reduction of prochiral ketones.Other applications include the enantioselective synthesis of α-hydroxy acids,α-amino acids,C2-symmetrical ferrocenyl diols,and propargyl alcohols.