title: Phenylenediamine
text: # Phenylenediamine
  
  Phenylenediamine may refer to:
  
  * o-phenylenediamine or OPD, a chemical compound $C_6H_4(NH_2)_2$
  * m-phenylenediamine or MPD, a chemical compound $C_6H_4(NH_2)_2$
  * p-phenylenediamine or PPD, a chemical compound $C_6H_4(NH_2)_2$
  * N,N-dimethyl-p-phenylenediamine or DMPD
  * N,N,N′,N′-tetramethyl-p-phenylenediamine or TMPD, used in microbiology
  * N,N-diethyl-p-phenylenediamine or DPD
  