polyenic

/ˌpɑliˈɛnɪk/
adjective
  1. Relating to or containing a polyene; having many double bonds between carbon atoms.
    • The polyenic structure of the molecule makes it highly reactive to light.
    • The bright color of the flower is due to polyenic pigments in its petals.
    • Researchers are developing new polyenic compounds for use in organic electronics.