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Titan yellow is a compound with formula C28H19N5Na2O6S4. Product may darken upon storage.
T 1797 (OTTO) Titan yellow Cas 1829-00-1 - used as a stain and fluorescent indicator in microscopy. It is also used as a reagent for the detection of magnesium. As an acid-base indicator, it changes color from yellow to red between pH 12 and pH13.