[2] Purified dinitromethane is a colorless liquid with a weak pleasant odor.

It is relatively stable at room temperature and can be safely stored for months at 0 °C.

[1] The potassium salt of dinitromethanide, KCH(NO2)2, was first prepared by Villiers in 1884 by reduction of bromodinitromethane.

[1] Free dinitromethane was previously understood to be a pale, yellow oil that decomposed rapidly at ambient temperatures.

[4] Dinitromethane should not be confused with methylene dinitrate (CH2(ONO2)2), which is produced as a byproduct in the production of the explosive RDX.