Supplier Page from Thermo Fisher Scientific for 2'-Hydroxychalcone, 95%
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific