Supplier Page from Thermo Fisher Scientific for Zirconium(IV) sulfate tetrahydrate, 99.99% (metals basis)
2-Ethyl-1,3-hexanediol, 99%, mixture of isomers from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific