I've been looking at what can be created with limited resources towards a medical end in a SHTF scenario. It seems that chloroform would be pretty simple to synthesize given access to a source of cold to slow the reaction and a modest amount of chemistry equipment. Downside though (very big) is that if it is improperly stored and not stabilized with ethynol it partially breaks down into phosgene. Yeah, that ugly gas from WWI. thoughts?