Supplier Page from Thermo Fisher Scientific for 1-Octanesulfonic acid, sodium salt, HPLC grade
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Glutaric anhydride, 95% from Thermo Fisher Scientific