phenylenediamine

 
Pronunciation: /ˌfɛnɪliːnˌdʌɪˈeɪmiːn, -dʌɪˈam-, ˈdʌɪəmiːn/

noun

[mass noun] Chemistry
  • a synthetic crystalline compound used widely in the manufacture of dyes and other chemicals and as a photographic developer.
    • Chemical formula: C6H4(NH2)2: three isomers