Supplier Page from Thermo Fisher Scientific for Magnesium sulfate heptahydrate, 99%, for biochemistry
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific