Supplier Page from Thermo Fisher Scientific for 2,4-Dihydroxybenzaldehyde, 98%
4-Fluoroanisole, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific