Supplier Page from Thermo Fisher Scientific for Cerium(III) sulfate, 99.9%, (REO=Rare Earth Oxides)
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl pyruvate, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific