Supplier Page from Thermo Fisher Scientific for Antimony(III) oxide, Puratronic:r, 99.999% (metals basis)
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific