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2-Tolidine (orthotolidine, o-tolidine) is an organic compound with the chemical formula (C6H4(CH3)NH2)2.
T 1837 (OTTO) o-Tolidine, GR 99%+ Cas 119-93-7 - used as an indicator in analytical, clinical and forensic chemistry. It is utilized for the determination of gold and chlorine level in swimming pool water.