Supplier Page from Thermo Fisher Scientific for 2',4'-Dihydroxyacetophenone, 98%
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific