Supplier Page from Thermo Fisher Scientific for 2,4,6-Trihydroxybenzaldehyde, 95%
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific