2,4-Dinitrochlorobenzene (97-00-7) (C6H3ClN2O4)

2,4-Dinitrochlorobenzene (DNCB) is a nitroaromatic compound with the chemical formula C6H3ClN2O4 and molecular weight 202.55 g/mol. It appears as a yellow crystalline solid with limited water solubility and good solubility in organic solvents. It is chemically stable under normal conditions but toxic, irritant, and hazardous on skin contact.
In terms of uses and applications, 2,4-Dinitrochlorobenzene is widely used as an intermediate in organic synthesis for preparing dyes, pigments, pharmaceuticals, and agrochemicals. It is also used in research and immunology studies as a sensitizing agent for evaluating contact hypersensitivity and immune response models. In laboratories, it serves in nucleophilic aromatic substitution reactions due to its activated aromatic ring. Additionally, it is applied in fine chemical manufacturing for producing substituted nitroaniline derivatives and specialty compounds. Careful handling is essential due to toxicity and sensitization risks.