Supplier Page from Thermo Fisher Scientific for Sodium sulfate, Puratronic:r, 99.9955% (metals basis)
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethylene glycol dimethyl ether, 99+%, extra pure, stabilized with BHT from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific