> > thanks so far for sharing your experience with Butanediol. But is it > important to use a specific enantiomer ? Are you all only using 2R3R- > Butanediol which is quite expensive ?
Sigma Cat. # 18970 2,3-Butanediol puriss., mixture of racemic and meso forms, ≥99.0% (GC) (Fluka) works well and freezes clear. And it's cheap! We've used it recently to collect 1.6 A resolution data from a crystal with 2000+ residues in the asymmetric unit. Petr
