Supplier Page from Thermo Fisher Scientific for Fluorescein, disodium salt dihydrate, 90%, pure
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific