you witnessed it yourself on the back label ? i checked starter fluid and it contained propane/butane and carbon dioxide as propellants,products of fractional oil distillation and diethyl ether you looking for as the last component and i tried to huff it from surgical mask before this took place ive sprayed it over surface, it evaporated too fast to feel something and i didnt bothered spraying it straight in the mouth(it left oily residue on the mask n i didnt wanted it to stick in down the windpipe)
i think depending on components of local starter liquid you can get for a high purity substance you need a PVC pipe w/ soldered bottom and just a product of propellant/ether mixture w/out unnecessary additives. spray all contents in the pipe and gaseous propellant evaporates off leaves liquid then you need to transfer this liquid in a cooled mason jar close it and put in the fridge