Does anyone know what chemical DTOD is? Kodak says it is C6H14O2S2, but I'd like to know what the common name is so I can order some. Kodak replaced the old B&W motion picture film D94 developer and R9 potassium dichromate bleach formulas with D94A and R10. The main impetus for this change was to eliminate the heavy metal chromium used in the old bleach. The new R10 bleach is a permanganate bleach. I always have mixed the D94 developer and R9 bleach from bulk chemicals. I'd like to do the same with the new D94A and R10 bleach, but the new first developer has this DTOD. Here is the old D94 formula: Kodak D-94 Water, 50 degrees C (125 F) 750 ml Kodak ELON (Metol) 0.6 g Sodium Sulfite (anhydrous) 50.0 g Hyrdoquinone 20.0 g Potassium Bromide (anhydrous) 8.0 g (or 7.0 g Sodium Bromide) Sodium Thiocyanate (liquid) 9.1 ml Sodium Hydroxide 20.0 g Water to make 1.0 L And the new D94A devloper Kodak D-94A Water, 50 degrees C (125F) 750ml Kodak ELON (Metol) 0.6g Sodium Sulfite (anhydrous) 60.0 g Hyrdoquinone 20.0 g Sodium Bromide 7.0g DTOD 0.42g Sodium Hydroxide 20.0 g Water to make 1.0 L The formulas are pretty similar. There's no Sodium Thiocyanate in the new D-94A, but there is this new DTOD. Sodium Bromide replaces Potassium Bromide, and the amount of Sodium Sulfite is increased. The amount of DTOD is less than half a gram per liter of developer. Can anyone suggest what might happen if I just left it out?