Supplier Page from Thermo Fisher Scientific for 2,5-Difluorobenzaldehyde, 98%
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific