This aromatic dione, also known as 1,4-Cyclohexadienedione, presents as a pale yellow to deep yellow green crystalline powder with a chlorine-like odor. Store in a cool, dark and well-ventilated place, under inert gas and at ambient temperatures - this substance is both light sensitive and air sensitive. 1,4-Benzoquinone is known to be incompatible with oxidizing agents, strong bases, reducing agents and combustibles and should not be stored or handled in their vicinity.