Supplier Page from Thermo Fisher Scientific for (R)-(+)-2-Pyrrolidinone-5-carboxylic acid, 98+%
2-Fluorobenzaldehyde, 97% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific