Supplier Page from Thermo Fisher Scientific for Xylenol orange, sodium salt, ACS reagent
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Dulcitol, 99+% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific