Supplier Page from Thermo Fisher Scientific for Zinc sulfate heptahydrate, 99.5%, for analysis
1-Ethylpiperidine, 99% from Thermo Fisher Scientific
1-Ethynyl-1-cyclohexanol, 99+% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific