This new version of LICHEM comprises many new capabilities including a hybrid–parallel implementation with the quadratic string technique coupled with restrained MM atmosphere optimization, point-charge and multipolar long–range electrostatic corrections through QM/MM–LREC, a brand new implementation of QM/GEM and several minor improvements. 2-Azidoethyl 4-methylbenzenesulfonate Data Sheet BuyMethyl 2-formyl-4-hydroxybenzoate PMID:26780211