Table 20(a) Unsaturated polycyclic hydrocarbons. Priority order.

(see Table 20)

Pentalene Chrysene
Indene Tetracene
Naphthalene Pleiadene
Azulene Picene
Heptalene Perylene
Biphenylene Pentaphene
as-Indacene Pentacene
s-Indacene Tetraphenylene
Acenaphthylene Hexaphene
Fluorene Hexacene
Phenalene Rubicene
Phenanthrene Coronene
Anthracene Trinaphthylene
Fluoranthene Heptaphene
Acephenanthrylene Heptacene
Aceanthrylene Pyranthrene
Triphenylene Ovalene

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