Supplier Page from Thermo Fisher Scientific for (Carbethoxyethylidene)triphenylphosphorane, ca. 94%, balance TPPO
1-Ethynyl-1-cyclohexanol, 99+% from Thermo Fisher Scientific
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific