What kind of film is it? Which process this film must be processed with? There are differences! Note that some ORWOs from that time are to be processed with 23°C and higher temperature would melt the emulsion.
I have some recipes for few color developers, like 2 or 3 ORWO processes, AGFA and some others. More from that time are using CD-1 as color developing component. Which one are you looking for?
Be warned: CD-1 is really dangerous substance! Protect you eyes and skin!
CD-1 is also known as T22, CD-1, TSS, dietylparafenylendiaminsulfát, Gevadiamin S, CPV-1, 4-Benzenediamin-N,N'-Diethyl Sulfate. CAS is 6283-63-2.