Tags: Chemical Compound, Chemical Substance.
DMDNB or also DMNB chemically 23-dimethyl-23-dinitrobutane is a volatile organic compound used as a detection taggant for explosives mostly in the United States where it is virtually the only such taggant in use. Dogs are very sensitive to it and can detect as little as 0.5 parts per billion in the air as can specialised ion mobility spectrometers. Its presence allows more reliable explosive detection.