The Great Acetonitrile Shortage

Now here

Those properties mean that acetonitrile/water mixtures are ubiquitous in analytical and prep-sized chromatography systems. …Labs working under regulatory-agency controls (GLP / GMP) have a very hard time changing analytical methods without triggering a blizzard of paperwork and major delays.

So why are we going dry on the stuff? There seem to be several reasons, one of which, interestingly, is the summer Olympics. The industrial production that the Chinese government shut down to improve Beijing