Phenylenediamine

Phenylenediamine may refer to:


 * o-phenylenediamine or OPD, a chemical compound C6H4(NH2)2
 * m-phenylenediamine or MPD, a chemical compound C6H4(NH2)2
 * p-phenylenediamine or PPD, a chemical compound C6H4(NH2)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