Citral was synthesized by catalytical rearrangement of dehydrolinalool in toluene solution with the present of molybdenyl acetylacetonate, benzoic acid and dimethyl sulfoxide (DMSO).
" Typically, it's a molecule called DMSO or another one called glycerol, and what these do is they get inside the cells and then when you cool them down, instead of ice forming they form a glass inside the cell."