Solubility of fullerene C-60 in 75 organic solvents was examined to develop
quantitative structure-solubility relationships. Topological indices and p
olarizability parameter computed from refractive index were used to form th
e regression models. The models suggested for individual data sets such as
alkanes, aklyl halides, alcohols, cycloalkanes, alkylbenzenes, and aryl hal
ides have good predictive ability and are better than the models for the co
mbined groups. Inclusion of an indicator parameter which is a combination o
f atom contributions and contributions of substituents' position in benzene
s improved the predictive ability significantly.