Supplier Page from Thermo Fisher Scientific for (R)-2-(Boc-amino)-4-phenylbutyric acid, 98%
Ethanethiol, 99+% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific