Supplier Page from Thermo Fisher Scientific for Xylenol orange, sodium salt, ACS reagent
3-Fluoroaniline, 98% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific