CPC Subgroup
C07C 15/58 containing two rings
Full Title
Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts > substituted by unsaturated carbon radicals > polycyclic condensed > containing two rings
C07C 15/58 Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts > substituted by unsaturated carbon radicals > polycyclic condensed > containing two rings