Supplier Page from Thermo Fisher Scientific for Tetra-n-butylammonium hydroxide, 1.0M aq. soln., HPLC grade
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific