Supplier Page from Thermo Fisher Scientific for 1,1,3,3-Tetramethoxypropane, 98%
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific