O=c1c(O)c(-c2cc(O)c(O)cc2O)oc2cc(O)c(C3OC(CO)C(O)C(O)C3O)c(O)c12
Rewrite: "Functional confirmatory assay using TK-10 cell line for NCI human tumor growth inhibition (non-molecular target)." Is the molecule assay-effective?