This aromatic diamine derivative, also known as 1,2-diaminobenzene dihydrochloride, presents as a white to slightly pale red crystalline powder. It is known to be very soluble in water, slightly soluble in ethanol, and insoluble in ether. Store in a cool and dark place and under inert gas - this substance is light sensitive and air sensitive. 1,2-Phenylenediamine Dihydrochloride is incompatible with oxidizing agents and should not be stored or handled in their vicinity. This chemical is toxic if swallowed, harmful in contact with skin or if inhaled, and causes serious eye irritation. It may also cause an allergic skin reaction and is suspected of causing genetic defects and cancer.