Supplier Page from Thermo Fisher Scientific for (R)-(-)-3-Chloro-1,2-propanediol, 97%, ee 98%
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Ethyl 3-chloropropionate, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific