Supplier Page from Thermo Fisher Scientific for Erbium(III) acetate tetrahydrate, REacton:r, 99.9% (REO)
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific