Supplier Page from Thermo Fisher Scientific for Pyrogallol, ACS reagent
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
5-Hydroxyindole-3-acetic acid, 99% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific
Semicarbazide hydrochloride, 99+% from Thermo Fisher Scientific