BROMOPHEN is a phenidone/hydroquinone developer supplied in powder form. Suitable for dish/tray developing all RC and FB black and white photographic papers, it is made into a stock solution that is diluted 1+3 for use. BROMOPHEN gives a slightly warm image tone with most papers and is particularly recommended for dish/tray developing MULTIGRADE Warmtone RC and FB papers to get the warmest image tone.