As soon as science has solved one problem, new ones arise. This is the essence of science, and it applies, of course, also to the field of essential oils.
Otto WallachAs soon as chemists have a definite conception of the internal structure of the molecule of an organic compound, they are able to tackle the task of producing these substances by artificial methods, i.e. by synthesis, as we call it.
Otto WallachIn organic chemistry, we have learnt to derive from compounds containing only carbon and hydrogen, i.e. from the hydrocarbons, all other types of combinations, such as alcohols, aldehydes, ketones, acids, etc.
Otto WallachMost of the oils which are valued as scents are mixtures of substances; only the combined effect of these leads to the known result.
Otto Wallach