E 2433 (OTTO) Ethyl bromodifluoroacetate, 98% Cas 667-27-6 - used for the treatment of the Reformat sky reagent with aldehydes and ketones affords 2,2-difluoro-3-hydroxy esters. E 2433 (OTTO) Ethyl bromodifluoroacetate, 98% Cas 667-27-6 - used in the analysis of reagent purity through IR, NMR.