Supplier Page from Thermo Fisher Scientific for Chromium, plasma standard solution, Specpure:r, Cr 10,000 µg/mL
2-Ethyl-1,3-hexanediol, 99%, mixture of isomers from Thermo Fisher Scientific
2-Fluorobenzaldehyde, 97% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific