Supplier Page from Thermo Fisher Scientific for 1-Naphthyl trifluoromethanesulfonate, 97%
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 4-chlorobutyrate, 97% from Thermo Fisher Scientific
Ethyl chloroacetate, 99% from Thermo Fisher Scientific