Diarscnol, ncodinrsciiol niirl soiliiiiii ditirscnol nrc still bciiig produced siicccssfully by ti Toronto firm, which is adding to its products grnilunlly.
Insulin is also being produccd, w r y naturiilly, i n Toronto, uiidcr tlic siipcrvisioii of tlic University authorities, and its distribution is controllcd by tlicni iii such awny tlint i t may roach tile sufferers nt tlic lo~vcst cost.
Naturally thc country looks to the Ciinndinn I!%xtro-Products Co., of Sliawinignn Palls, for thc Icnding developments in coniicsioti with iicw clicniicnl conipoliiids. It is now inaiiufacturiiig ctliyl acetate froni n-cctnldchydc. This proccss lins bccu wcll linowii for sollic time from n scicntific standpoint, but n conimerciiil process lins bcen worltcd out by the coiiipaiiy, and it is now able to supply practically :dl the Cniint1i;iu dcmnncls. Tlic reaction is cnrrictl out i n tltc I)resctico of alumitiiuin cliloride and two r~~olcci~lcs of iicctnldcin nccordniicc witli tlic followiiig cquntion :-hyde :ire coiidc1iscd to give 0 1 1 ~ lilolcc1Ile of ctliyl iicctiltc c~-r,ci-ro + cr-r,ci~o = cir,cooc,I-r,.
Tlic Ciuiiitlinii .Elcct,ro-Products Co. is also proiliicittg butanol and butyrnltlcliydc from crotonnldchydc by t.ltc hydrogcnntion of tlic last n:imcd. Thesc products iirc of prime importiiiicc ns so1vent.