Supplier Page from Thermo Fisher Scientific for 2-Hydroxy-3-methylbutyric acid, 97%
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific