Supplier Page from Thermo Fisher Scientific for Hydrobromic acid, 99.9999% (metals basis), 48% w/w aq. soln
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific