Supplier Page from Thermo Fisher Scientific for tert-Butyl hydroperoxide, 70% solution in water
4-Ethylphenol, 97% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific